How Horror Directors Make Sound Carry the Fear

Question: How do renowned horror directors use sound effects, audio design, music and silence to drive the emotion they want the audience to feel? Taken whole, from the film's side rather than the composer's or the mixer's: the score, the sound design, the voice, silence and dynamics, and diegeticSound whose source exists inside the story world, such as a radio in the room, as opposed to non-diegetic score the characters cannot hear. music, across eras and across Western and East Asian horror. And which of the claimed effects are measured rather than craft lore?

Short answer: The makers describe one job and five ways of doing it. The job is to make the audience feel a threat the picture is withholding; Spielberg's summary of John Williams is that "he became the shark." The five ways are the score as the monster's presence or absence (Jaws, Halloween, Psycho, The Invisible Man), innocence placed first and then curdled (the lullabies of The Innocents, Rosemary's Baby and Us, the cheerful pop of American Psycho), the voice built as an effect rather than as dialogue (The Exorcist, Kayako, Pennywise), noise where music would be (Chain Saw, Goblin, Kurosawa, Korven, Stetson), and silence engineered so that the audience loses the cue that tells it how to feel (The Birds, No Country for Old Men, Hereditary, A Quiet Place). Japanese makers state the subtractive version of this, Nakata's "aesthetics of subtraction" and Kurosawa's "It is the things that we can't see," while the Korean makers on record ask for more music, not less. The laboratory has measured the two reflexes horror sound leans on, the acoustic startle reflexA fast brainstem reflex to a sudden intense stimulus, measured in humans as an eyeblink; it is larger in darkness and under anticipatory fear and shrinks with repetition. and the aversion to vocal roughnessFast amplitude modulation in the 30 to 150 Hz range that gives screams and alarm sounds their harsh, grating quality and engages the brain's salience networks., and it has shown that music changes what viewers see in the same footage; it has not measured dread, the drone, the needle drop, silence, rear-channel placement or any director's rationing of the jump scare, and infrasound and subliminals remain lore.

In short:

• "There is no soundtrack": Chion's added value and synchresisChion's term for the involuntary weld the brain makes between a sound and an image that occur at the same moment, regardless of whether they belong together. explain why a stinger reads as part of the picture, and his acousmaticHeard without its source being seen; Chion's acousmêtre is a voice whose unseen body gives it powers the visible body loses. mother in Psycho is the horror case (section 1)
• "He became the shark": Williams's two notes play fair, Carpenter scored Halloween after an executive called the silent cut not scary, and Wallfisch's synth "growl" is the only evidence of The Invisible Man (section 2)
• Forty-five seconds of black and a child singing: Clayton, Polanski, Craven, Peele and Harron state the same rule from both ends, that the happier the music the worse the violence feels (section 3)
• "I did all of the demon sounds": McCambridge's wheeze, Shimizu's own croak, Skarsgård's throat tones and Dzuban's octave-down layers are one recipe, a performance first and processing kept light (section 4)
• "Something dreadful is bubbling under the surface": Bell's cymbals, Kawai's broken violin, Korven's abused cello and Stetson's clarinets mistaken for synths hide the instrument so the ear cannot file the sound as music (section 5)
• "Remove the safety net": Hitchcock's "No music," Lievsay's No Country, Goldstein's one cricket and Aadahl's digital zero describe silence as the removal of instruction (section 6)
• A lull with the transients filed off: Dzuban's recipe, Gates's "quiet followed by loud" and the Lewton bus are the same device; the reflex habituates, the fear riding on it does not (section 7)
• Measured versus lore: startle, roughness, dissonance, expectancy violation and the auditory Kuleshov effect are measured; infrasound rests on one anecdote and one small 2026 study; nobody has measured a drone, a needle drop or a silence (section 11)

Every maker in this report assumes something Michel Chion wrote down. In Audio-Vision he defines added value as "the expressive and informative value with which a sound enriches a given image so as to create the definite impression, in the immediate or remembered experience one has of it, that this information or expression 'naturally' comes from what is seen, and is already contained in the image itself," and he adds that this is "what gives the (eminently incorrect) impression that sound is unnecessary, that sound merely duplicates a meaning which in reality it brings about" [1]. The mechanism is synchresis, "the spontaneous and irresistible weld produced between a particular auditory phenomenon and visual phenomenon when they occur at the same time," a join that "results independently of any rational logic" and is "Pavlovian. But it is not totally automatic" [1]. Walter Murch's foreword gives the craft form: "The sound of an ax chopping wood, for instance, played exactly in sync with a bat hitting a baseball, will 'read' as a particularly forceful hit rather than a mistake by the filmmakers" [1]. The consequence for horror is in Chion's own words: "Most falls, blows, and explosions on the screen, simulated to some extent or created from the impact of nonresistant materials, only take on consistency and materiality through sound" [1]. A puppet head on a pole is a decapitation because the track says so.

Two more of Chion's terms carry the rest of this report. The first is acousmatic sound, "a situation wherein one hears the sound without seeing its cause," which "maintains suspense, constituting a dramatic technique in itself," and whose horror instance is Lang's M, where "for as long as possible the film conceals the physical appearance of the child-murderer, even though we hear his voice and his maniacal whistling from the very beginning" [1]. He distinguishes active offscreen sound, which "raises questions (What is this? What is happening?) whose answer lies offscreen," from passive offscreen sound that "envelops and stabilizes the image," and he names the genre's founding case: "Films like Psycho are based entirely on the curiosity aroused by active offscreen sound: this mother we keep hearing, what does she look like?" [1]. The unseen voice, the acousmêtre, has in his account from The Voice in Cinema "the ability to be everywhere, to see all, to know all, and to have complete power," and giving it a body, de-acousmatization, dooms it "to the fate of ordinary mortals"; Psycho's ending, the mother's voice speaking while Norman's mouth is closed, is "the triumph of the acousmêtre" [2]. The second term is rendering: the spectator accepts sounds "not so much if they reproduce what would be heard in the same situation in reality, but if they render (convey, express) the feelings associated with the situation" [1]. That sentence licenses every exaggerated bone crack in section 4.

Chion also supplies the theory of the two devices horror uses most against expectation. Music can show "conspicuous indifference to the situation, by progressing in a steady, undaunted, and ineluctable manner," which "has the effect not of freezing emotion but rather of intensifying it, by inscribing it on a cosmic background"; he calls this anempathetic, and he lists its stock in trade, "those countless musical bits from player pianos, celestas, music boxes, and dance bands, whose studied frivolity and naivete reinforce the individual emotion of the character and of the spectator, even as the music pretends not to notice them," with Psycho's running shower as the noise version [1]. And he insists that "the impression of silence in a film scene does not simply come from an absence of noise. It can only be produced as a result of context and preparation ... So silence is never a neutral emptiness. It is the negative of sound we've heard beforehand or imagined; it is the product of a contrast" [1]. His worked example is the cat shot in Alien, where "The shots leading up to this are sonically rich, preparing for the void that follows, but care has been taken that the silence doesn't strike too suddenly. During the first three seconds of the shot of the cat we can hear a small unidentified sound, like a tick-tock" [1]. Sections 3 and 6 are the makers independently describing both.

The horror-specific scholarship extends Chion rather than testing him. Robert Spadoni's Uncanny Bodies argues, in Tony Fonseca's account of it, that the genre crystallised in 1931 out of the uncanniness of early synchronised sound, with Dracula's "sudden, off-screen, and ambient noises," a crucifix hiss and Renfield's laugh unsynchronised with his mouth, and that "virtually from the moment the sound transition began, the uncanniness of sound film began to fade" [3]. William Whittington's reading of J-horror is that "spiritual forces haunt the highest and lowest registers of the soundtrack's dynamic range," that "the hierarchy of sound (dialogue, music and effects) is re-organized to create a sense of imbalance," and that in the Hollywood remakes "the sounds become the ghosts" [4]. Hideo Nakata's own account of the Ring mix is the maker's version of Chion's "there is no soundtrack": "Your ear can not separate the melody from the sound effects because they are all so well integrated in the overall soundtrack," built on "50 tracks for Kenji Kawai's background sounds and 50 tracks for the sound effects" [5]. Neil Lerner's collection Music in the Horror Film is organised around close readings, its publisher promising to show "how sudden stinger chords and other sound effects can make audiences feel threatened" [6]; none of these authors measures anything, and section 11 says what has been.

One anchor case shows the whole contract in a single production argument. Bernard Herrmann recalled Hitchcock after the Psycho rough cut "nervously pacing back and forth, saying it was awful and that he was going to cut it down for his television show," and his own counter, "How about a score completely for strings? I used to be a violin player you know"; Hitchcock "didn't even want any music in the shower scene. Can you imagine that?" [7]. Hitchcock's dictated note had asked for "no music at all though the [motel] sequence" [7]. Herrmann's one-word statement of what the shower cue was meant to convey was "Terror." [8], and Hitchcock, after hearing it, withdrew what Steven C. Smith calls his "improper suggestion" and nearly doubled Herrmann's fee [8], later saying that "33% of the effect of Psycho was due to the music" [9]. The picture was the same; the feeling was not in it until the track supplied it. That is added value, settled by hearing.

Takeaway: Chion gives the terms: sound adds value the viewer attributes to the picture; synchresis welds any sound to any image that lands with it; the unseen voice has powers the seen body loses; silence is a contrast, not an absence. Psycho is the case in which a director who wanted silence was persuaded by hearing that the terror was in the strings.

The earliest brief: an unresolved score

The first explicit director-to-composer emotional brief in the record belongs to James Whale. He asked Franz Waxman, for Bride of Frankenstein (1935), "Nothing will be resolved in this picture except the end destruction scene. Would you write an unresolved score for it?" [10]. Whale also suggested the loud dissonant chord that ends the film, meant to convey that the on-screen explosion was so powerful it affected the theatre showing the film [10]. Program notes record that he wanted an extended treatment rather than the "squeal and groan" style then common in horror, with timpani as an obsessive heartbeat and mock wedding bells at the Bride's birth [11]. Four years earlier Dracula (1931) had no composed score at all, only Swan Lake over the titles and concert music in the theatre scene [12], so Bride is the moment a through-composed score made fear a matter of continuous harmonic unease rather than performance in silence. Behind both lies the silent-era method: Hans Erdmann's lost Nosferatu score survives only as a 1926 suite whose published mood labels, "Spooky: sinister, weird nights, goblins, thunderclouds, persecution mania" and "Destroyed: plague, funeral procession, inescapable fate," show accompaniment typed by scene rather than by moment [13].

Jaws: the theme that plays fair

John Williams's two notes are the clearest case of a score standing in for a withheld monster, and both makers have described it. Spielberg: "I thought it was a joke when Johnny played it for me on the piano." "I started laughing." Then: "Johnny sort of saved the movie because he became the shark," because "music substituted for the absent shark, which made it a hell of a lot scarier and more SUSPENSEFUL" [14]. Williams in the same conversation: "There is no shark nearby, but if it speeds up and comes closer to you and gets louder and louder"; "You've got an actor that you can't see and a threat that by some primordial instinct you are threatened" [14]. To Classic FM he gave the notes, "I played E, F, E, F, E, F, D, F and so on," and the aim, "find some musical theme or idea that might represent the shark or might represent our primordial fear" [15]. His description of the character of the music is "Brainless music that gets louder and gets closer to you, something is gonna swallow you up," and "It could be something you could play very softly, which would indicate that the shark is far away when all you see is water" [16]; elsewhere "grinding away at you, just as a shark would do, instinctual, relentless, unstoppable" [17]. The structural point is Audissino's: the leitmotif is used only when the shark is genuinely present, Williams "plays fair," so it is absent from the beach panic caused by boys with a fake fin, and the shark's climactic appearance comes with no musical introduction, exploiting the conditioning [17]. That is the inverse of the Lewton bus in section 7: Jaws trains the audience to trust the music, then withholds it once.

Halloween: the velvet glove and the silent screening

John Carpenter's account of Halloween (1978) is the most repeated maker statement that a score makes the fear. "I showed the movie to an executive without music, which is a big mistake," and the executive said the footage "wasn't scary"; once the score was added, "it got scarier" [18]. He set out to "save the film with music," and of the test audience: "I knew that it was a combination of things – it was the movie, yes, but also the music that was helping it" [19]. The 5/4 figure came from a bongo exercise: "My father bought me a pair of bongos for Christmas when I was 13 and he taught me five-four time"; "I sat down with the piano just one in 'dun-dun-dun' and played octaves; that's where it came about" [18]. Carpenter calls film music "the director's velvet glove," and Alan Howarth explains the phrase: "It's a soft way to move people... I'm scared, I'm excited, I want to have affinity for this character, I want to hate this character" [20]. The budget was the other author: Carpenter "was the only composer he could afford," and his method was "cheap and fast" [20]. Neil Lerner's reading of why the figure works is the critics': the 5/4 meter sounds "out of balance," "It's dissonant, and the dissonances are not prepared or resolved," and "Carpenter's setting up an idea of surprise with the music" [21]. No Carpenter statement has been found on how a cue marks the Shape's presence; the "cattle prod" description of his stingers circulates without a source.

The Thing: "use less notes"

On The Thing (1982) Carpenter's brief to Ennio Morricone was subtraction. "It was all way too flourishy and ornate." "I said to him, 'Ennio, use less notes.'" "And he did. That was the main title theme" [22]. He credits the composer with something he had not asked for, "this deep, tragic sense that this is the end of things, of everything," calling Morricone "an X-ray composer" who "brought out a part of the theme of the movie that hadn't been thought of before" [22]. When the orchestral cues failed in tense scenes, Carpenter recorded his own simple electronic pieces, which he has described as "almost tones" rather than music, and as "background sounds, something today you might even consider as sound effects" [23]. The division is a maker's own statement of the score-effects blur that section 5 treats at length.

Suspiria: the witches in the air

Dario Argento's brief to Goblin is the purest statement of score as a presence the picture withholds, and Claudio Simonetti has repeated it in several forms. "I want the music to always scare the people even when nothing is happening on the screen" [24]; "I want people to always feel like the witches are in the air"; and, from the DVD extras, "They told us, 'You have to write the music that every time in the film the audience feels the witch. Like ghosts.'" [25]. The music written from the script was thrown away: "When you write the music from the script, I don't know why, but it doesn't work" [26]; "We tried to do the music before, but after we saw the film we changed everything" [25]. The hissed voice on the theme was Simonetti's addition because "I thought there was something missing so I recorded my voice" [24]. The lore that the music was played loud on set is not supported; what Simonetti says is "Sometimes Dario played our music on the set to inspire the actors" [25], and the "music as assault" idea rests on Argento's own remark that "that kind of strong, excessive, and very powerful music was considered the father of the music video" [25].

The Invisible Man and Hereditary: the score as the only evidence

Two recent scores make the monster audible when it cannot be seen at all. Benjamin Wallfisch on The Invisible Man (2020): "Leigh's vision was to have the music very much as a character, and not just as underscore"; Adrian Griffin "has a kind of synth leitmotif, something we called a 'growl'," which "shifts in tone throughout and gives him presence even when you can't see him" [27]. Whannell "sent me a full cut of the film with absolutely no temp music" and "was pushing me to be very extreme and left field" [28]; the strings alone are "a little love letter to my hero Bernard Hermann" [28]. Colin Stetson on Hereditary (2018) gives the same idea in different words: "The score itself was an unseen, additional cast member -- another character in the narrative" [29], one that could "taunt or lust or grieve"; "It wants Peter, for example, it's playing with him and it's devious" [30]. His revelation of the plan is the inverse of Jaws: "Reborn is a fanfare, a coronation, this triumphant return"; "By design, the whole score is a reconstruction of that piece of music" [30], so the finale's brass is not ironic counterpoint but the fulfilment of a plan the score was hiding, a change in whose side the music is on rather than a dissonance. Charlie Clouser's Saw (2004) runs the same backwards design: the main body was "very murky and indistinct and kind of blurry" so the ending would land "as if the bright lights get turned on when that ending theme begins," earlier cues being the "Hello Zepp" theme "transposed down a couple of semi-tones" [31]; Leigh Whannell's comparison is "It's like the Jaws theme. It becomes part and parcel of the lexicon of the Saw franchise" [32].

Takeaway: When the camera cannot show the threat, the score is asked to be it. Whale wanted harmony that never resolves; Williams wanted brainless, relentless notes that are honest about when the shark is real; Carpenter wanted less; Argento wanted the witches present in every empty frame; Wallfisch and Stetson wrote the monster as a character. The makers agree the feeling was not in the picture until the music arrived, and Carpenter's silent screening is the closest thing to a natural experiment in the record.

Innocence stated before any image

The device the period makers return to most often is a child's tune placed before the horror, so that every later recurrence reads as contamination. Jack Clayton's The Innocents (1961) opens on a black screen as "O Willow Waly" is sung; "For the first 45 seconds of the film, the screen is black and singing is heard before credits," and the Fox logo appears only as the second verse begins [33]. Clare Nina Norelli's critics' reading is that the tune then recurs as Flora's music box, as Flora's humming and as the children's piano fragments, "as a motivic device to suggest both the supernatural possession of Flora and Miles," so that "The song's spell has been cast, the girl's haunting incantation has already enacted its magic upon us" [34]. Clayton was dissatisfied with Georges Auric's score and had it re-orchestrated by W. Lambert Williamson, and the apparitions are marked not by orchestral stingers but by Daphne Oram's uncredited "spectral massed sine tones" [33]; Robert Barry hears "a rising tremolo of stacked sine tones, harmonised spectrally in just intonation" as the dead woman appears across the pond, and reads the electronics as "the leitmotif of Miss Giddens's creeping insanity" [35]. No Clayton or Oram statement of intent has been found.

Roman Polanski made the victim's own voice the lullaby. Krzysztof Komeda's wordless melody for Rosemary's Baby (1968) is hummed over the titles by Mia Farrow at Polanski's wish; his reported line is that "she proved able to hum quite well" [36], a quotation that reaches the record unfootnoted and should be verified against his memoir. Mario Bava's Kill, Baby... Kill! (1966) got its title lullaby by accident, tracked from Armando Trovajoli's music for a comedy because the credited score "is actually a collection of library music" [37]. Wes Craven's A Nightmare on Elm Street (1984) had the jump-rope rhyme in the script before Charles Bernstein started; the melody came from Alan Pasqua and one of the three girls who sang it was Robert Shaye's 14-year-old daughter [38]. William Friedkin, having thrown out Lalo Schifrin's score, had wanted something like Brahms' Lullaby with "a kind of childhood feel" [39], and found it in a stack of records: "I went through that stack until I came to this thing called 'Tubular Bells' by a guy named Mike Oldfield." "But I listened to that refrain, and it hooked me" [40]. Fernando Velázquez's account of The Orphanage (2007) is the fullest maker explanation of what the fragmented lullaby is for: "We would change the harmonies, we would destroy the harmonies, cut the theme, transform it, transpose it" so as "to have the theme fragmented, broken, there but not there, hidden," carrying "the idea of lost innocence, the idea of missing childhood"; the director "wanted was for people not to think" and "only to feel" [41]. Anna Drubich's Barbarian (2022) lullaby was designed to be ignored: "this is kind of like TV commercial music," "nobody will notice it because it's just a kind of TV music" [42].

Peele: the children's march and the recontextualised song

Jordan Peele's films state the device from the composer's side. Michael Abels on the Us (2019) "Anthem": "you start out by hearing a children's choir singing this kind of evil march," and Peele "thought it would be something people think of as sweet but could be used to really creepy effect" [43]; "That's not something people would think of as freaky, but in Jordan's world, that's a freaky opportunity," with voices that "needed to sound broken down by life: not cries, but sighs of despair" [44]. The score as a whole was "a balance, I think, emotionally, between sheer terror and a sort of despair and empathy," because the Tethered "are us" [45]. For Get Out (2017) the voices in Swahili "are meant to represent the departed slaves and lynching victims," singing "Brother, run! Listen to the elders! Listen to the truth! Run away! Save yourself!", in a language chosen "so we hear an African language in their tone yet we don't hear the exact words they're saying"; the music "rather than being satirical or funny – takes his point of view" [46]. Peele's own reported reaction to the demos was "This is the scariest blues I have ever heard!" [46]. On the Luniz song in Us he gave the principle: "I love taking a song and throwing a new context at it," "The riff reminded me of Nightmare on Elm Street" [47], and "I feel like the beat in that song has this inherent cryptic energy" [48]. Abels's slowed string version works, he says, by adding "more space between the baseline," because the tension is "knowing what's coming but not knowing when" [43].

The cheerful song against the violence

The adult form of the device has the clearest maker rule. Mary Harron on American Psycho (2000): "It had to be glossy, mainstream pop. The more happy the music was, the better it worked." "It had to be American and it had to be upbeat." And the characterising constraint, "The one thing you couldn't do was think Bateman was in any way cool" [49]. Quentin Tarantino said of "Stuck in the Middle with You" in Reservoir Dogs that "That was one of those things where I thought [the song] would work really well," and that nearly every actor auditioning chose it for the torture scene [50]. David Lynch on Orbison's "In Dreams" in Blue Velvet: "it is a beautiful song and it was written by Roy… Those lyrics, that feel meant something to him," and for Frank Booth "it meant a third thing" [51]. For The Silence of the Lambs the only maker statement about what "Goodbye Horses" does is Ted Levine's, that the song made the scene "a little gentler," "stranger" and "more feminine"; the dance was not in the script and was first rehearsed to Bob Seger's "Her Strut" [52]. Leigh Whannell's line about Insidious, that "if things are too aggressively happy and cutesy than it crosses a line into creepy-ville," reached the researchers only as a search excerpt from a blocked page and is unverified. Two logics appear in these statements: contrast, in which a happy song makes the violence worse and implicates the viewer who was enjoying it (Harron, Tarantino), and latency, in which the song was always slightly wrong and the film reveals it (Peele). Lynch sits between.

The record that was not planned

The most famous period needle drop in horror was a last-minute fit. Gordon Stainforth, Kubrick's music editor on The Shining (1980): "The 1930s piece, 'Midnight the Stars and You' (about ten years too late for the 1921 ballroom scene), when Jack walks into the Gold Ballroom, was the only choice I could give Stanley because nothing else fitted one hundredth as well." "Very few people can believe that 'Midnight, the Stars and You' was chosen and fitted at the very last moment of dubbing, and was not planned all along." "Stanley had a completely different piece of music played on a cassette recorder for Jack to 'dance' to when they shot the scene" [53]. Readings of the anachronism as deliberate are therefore critics' readings. George Romero's library scores belong here too: for Night of the Living Dead he and Karl Hardman "spent days, weeks, months listening to tracks" from the Capitol Hi-Q library, passages pre-titled "Anticipation", "Suspense", "Sudden Shock" [54], and for Dawn of the Dead his cut relies mainly on De Wolfe cues, with Herbert Chappell's polka "The Gonk" carrying zombie moans Romero added himself [55]. The irony critics hear is consistent with his choices, but no Romero statement of intent has been found.

Chion's theory of the anempathetic, music that "pretends not to notice" [1], is the common frame for all of these, and the measured literature (section 11) supports one half of it: music shifts the valence and interpretation of the same footage, with large effects. Whether it transfers arousal has only one small test.

Takeaway: The lullaby and the needle drop are the same device at two ages. Innocence is stated first, by a black screen and a child's voice or by a chart hit, and the film then makes the audience hear what was always in it. Harron gives the rule ("the more happy the music was, the better it worked"), Velázquez the method (a theme "fragmented, broken, there but not there"), and Stainforth the caution: the most analysed needle drop in the genre was fitted on the last day of the dub.

Regan: a performance edited as effects

The Exorcist (1973) is the template, and Jay Beck's archival study is the primary record. Five freelance "sound artists" outside the unions, Bob Fine, Gonzalo Gavira, Doc Siegel, Ken Nordine and Ron Nagle, were each contracted separately to design special effects [56]. Nagle's sources were literal: he "created sound effects by agitating several bees trapped in a jar, getting his dogs into a fight, and recording his girlfriend's stomach while she drank water ... each of the sounds was treated in the studio to estrange it from a recognizable source" [56]. The attic scratching was built, per Bud Smith's court affidavit, from "guinea pigs running on a board covered with sandpaper, the scratching of fingernails, and the sound of a bandsaw as it flew through the air," and Beck's reading is that "By keeping the sounds offscreen, Friedkin enhanced the film's horror by letting the audience imagine the sources" [56]. The bee was tuned with a variable-speed oscillator into "a chord cluster spanning four octaves" [57]. The head turn is attributed in Mexican press to Gavira twisting a leather wallet in front of a microphone [58]; no Gavira interview exists.

The demon voice is Mercedes McCambridge's performance, and in her own words: "Doing that sound track was a terrible experience. I didn't just do the voice, I did all of the demon sounds. That wheezing, for instance. My chronic bronchitis helped with that" [56]. Friedkin chose her, by his own 1974 admission, for the "emphysemiac" wheeziness, used "whenever the demon was not speaking" [56]; his later description is "The most curious things would happen in her throat, double and triple sounds would emerge at once," and "She performed it under great duress" [59]. The processing was editorial rather than electronic: "her 'vocals' were edited and manipulated as sound effects, physically separated from the dialogue," with Friedkin's mix notes marking "to slow down certain sounds, to switch between the demon and Regan's voice, to build tracks from multiple takes, and to create a 'backward' voice by reversing the tape" [56]. The restraint, eggs and whisky stories are secondary and repeated across sources; the "four tones" and "Vatican recording" details appear only in an unattributed Guernica narration [60] and should be carded as lore. Friedkin's governing instruction, as supervising sound editor Cecelia Hall recalled it, was that "he wanted it to be too loud because he wanted the audience to be slightly on edge by the middle of the film" [56], and his own: "I am interested in gut level reaction" [56]. Chion's verdict on the result is that the film "contributed significantly to showing spectators how the cinematic voice is 'stuck on' to the cinematic body" [56].

Kayako: the director's own throat

Takashi Shimizu confirmed on record that the Grudge sound is his voice. Asked "That sound in the film is your voice correct?" he answered "Yes that is me," after lowering his head to the recorder and making it for the interviewer [61]. Whittington's critics' account of the construction is "a combination of the director's voice and the recording of a finger raking over the teeth of a thick comb," which "functions as both a howl of grief and the roar of attack"; in the original Ju-on the clicking is also tied to the box-cutter the husband extends and retracts, and the effect "provides the archetype for the construction of the overall sound design," "contrasting low-frequency rumbles with high-frequency sound effects" [4]. No Shimizu statement explains why a vocal sound rather than a face.

Pennywise to Smile 2: one recipe, stated four times

The best-documented modern demon voices follow a single procedure that their makers describe in nearly the same words. Paul Hackner on It (2017): "The sound of Pennywise's voice truly began with the actor's performance"; Skarsgård "explored the full frequency range of his throat and voice including Tuvan-like throat tones," and "Often Andy would perform his own versions... and then like in a rock band, Skarsgård would riff off of that" [62]. Garret Farrell on Evil Dead Rise (2023) quotes Lee Cronin's brief, "I want to hear her rotting from the inside," and his own rule, "We wanted to do as little damage to that as possible with pitching and processing"; a second voice "harked back a bit to the original movies where there's a double pitch" [63]. Dan Kenyon on Smile 2 (2024): "I processed a few different layers of her original performance, mostly pitching it down," and "Parker wanted to hear the actress's performance on top of everything"; his taste is for "results that are more natural and not too processed, or robotic," and for one scene the team "ended up reverting to actress Naomi Scott's" unprocessed take [64]. Joe Dzuban on The Conjuring 2 (2016): "We also pitched one layer an octave or two lower just to give the voice a more demonic, otherworldly feel," dialled in "just until we had a pitch and tone that felt like it emotionally matched the scene" [65]. Emma Bortignon on Talk to Me (2022): "Instead of relying on heavy processing to find the sound, we focused on capturing the right vocal performance," with backstory driving the sound, so that "when the first spirit possesses Mia, we hear her gasping and choking on water, as this spirit had met its end through drowning" [66]. The common chain is a performance recorded at the extreme, duplicated two or three times, each copy pitched down a little, one non-human texture added, and the dry take left on top; every mixer who addresses it rejects the robotic.

The click, the screech and the choir

Hereditary's click is a case where the maker disclaims the design. Ari Aster: "It was simple, and it was easy to establish and memorable," and "It's become more of a thing than I ever anticipated, which I'm happy about" [67]. The sound team's account is of placement rather than processing: "We focused a lot of attention on how loud Charlie's clicks were and where they were coming from" [68]. Jennifer Kent refused to explain the Babadook: asked whether the screech was stock, "we generated all the sounds ourselves," and she declined to detail it because it would "spoil the fun" [69]; Jed Kurzel's score, per a paraphrased interview, cut, looped and delayed recordings of his four-year-old daughter's voice to suggest voices trapped in Amelia's mind [70], a claim that needs verification against the unreachable original. Robin Carolan on Nosferatu (2024) built the voice into the orchestra: strings told "to really go far out with it" until they sounded "like they were in agony," because "I needed the strings to wail and groan like human moans," and a choir that "had to sing in Dacian" because Eggers's Orlok "speaks in a forgotten tongue" [71]. Stetson's Hereditary drone is a throat-miked chant: "That's me just doing this long drone chant, low in my range and also pitched down a little" [30]. Even the earliest of these is a body: Jonathan Demme told his production mixer before the first Lecter meeting, "Let's get humpback whale sounds and mix them in a little bit" [72]; Percy Edwards, a British animal impressionist, performed the alien's vocalisations in Alien (1979) [73]; and Joseph Bishara, who plays the Lipstick-Face Demon in Insidious, says "I also recorded most of my demon sounds during the scoring; it just made sense" [74].

The body: bone, flesh, blood

The gore is a kitchen. Gary Hecker, foley artist on Freddy and Jason films: "I take a big stalk of celery, wrap a chamois around it, and crack it in half... So that's the sound of bone breaking under skin." "Then for the gooey stuff, I layer in a wet chamois and my voice, so it sounds like bones cracking and blood spraying." "I put water in my mouth, and then spray it to create a bubbling sound." [75]. Peter Albrechtsen on Evil Dead Rise: "the classic elements of fruit, tomatoes, and mandarins, using celery for bones and crackles... There's also some spaghetti bolognese in there," with layers "playing both forward and backward at the same time" [63]. Dzuban's rule is economy: "Find something unusual and unique to record for your gore"; "fewer layers are better" so the audience has "something strong to hold onto" [76]. Hereditary's decapitation was directed as "Less squishing and more tearing" [68]. Weapons (2025) went the other way on Zach Cregger's instruction: "Let's try and not do that. Let's try to go the complete opposite direction … Let's pare it down and make it more diegetic and realistic," and Luciano Vignola's finding was that "The more we turned it down, the more realistic and upsetting it became" [77]. Chion's rendering principle is the theory here: the viewer accepts the sound that conveys the feeling, not the one that reproduces the event.

Takeaway: The famous horror voices are performances first: McCambridge's bronchitis, Shimizu's throat, Skarsgård's Tuvan tones, Stetson's chant. Processing is light and repetitive, a few duplicated layers pitched down, one animal or electrical texture, the dry take on top, and every mixer who describes it says the same thing against the robotic. The body is vegetables and wet leather, separated into bone, tendon, skin and fluid and recorded one layer at a time.

Bell and Hooper: the mushy grey area

Wayne Bell's accounts of The Texas Chain Saw Massacre (1974) are the fullest maker description of a horror soundtrack that refuses to be music. "We were throwing out Western concepts of harmony and melody in the search of something abstract"; "What we were doing together was playing around on that edge between what is music and what is sound" [78]. The sources were "two cymbals; an 18-inch Suspension cymbal and a 20-inch ride cymbal," a Fender lap steel as "the only electrified instrument we had," children's toys, a bowed and rubbed bass, pecan shells, watermelons thrown onto asphalt, and his father: "That pig sound is actually my father, imitating a pig" [79] [80]. The governing idea was material: "There's a metal and steel component to the reoccuring crash cymbals and the Fender lap guitar ... the chainsaw is a metal device and the thing that does all the damage is that spinning, seething rusty chain" [78]. The method was a library assembled by editing, "It wasn't so much scoring action, more like scoring an idea and creating a library of sounds to build from" [80], with cues labelled "this is strictly tension" or "this is the bone room" [79]. The intent: "It was about creating a musical tone so that when you're watching these relatively mundane characters… there's a feeling something dreadful is bubbling under the surface" [78], and the admission, "Of course, there's another reason and that is that there was no budget" [79]. Tobe Hooper's own words are about the whole: "I wanted the sound to be aggressive, so that you'd respond"; "the idea behind THE TEXAS CHAIN SAW MASSACRE was that the movie would enter your mind the way music does"; "Sounds and music, more so than visual storytelling, can open up a larger aperture to receive emotions" [81]. The flashbulb squeal that Bell calls "the stinger" he still refuses to explain [80]. "Industrial drone" is not his term; the nearest maker language is the "metallic undercurrent," cymbals doing "the job that a wind would do" [79].

Hitchcock's birds and Kurosawa's washing machine

The two directors who replaced score with sound outright are separated by forty years and agree. Hitchcock, of The Birds (1963): "We used only sounds for the whole of the picture. There was no music," and "When musicians compose a score, or orchestrate, they make sound rather than music" [82]; the original interview behind those lines is not identified by the page that carries them. The electronic birds were made by Oskar Sala and Remi Gassmann on the Mixtur-Trautonium, Herrmann was credited as "sound consultant," and the film relies on effects and sparse source music set against calculated silences [83]. Kiyoshi Kurosawa, in 2024: "I'm always jealous of how free and luxurious sound is compared to the image. Images are weak." "Sound is more powerful. So, in terms of a hierarchy, sound is definitely on a higher level than the image," with the limit that "If I go beyond it, then the image has no meaning at all"; and his theory of fear, "It is the things that we can't see that create this deep fear within the audience" [84]. His sources are real: via Chris D.'s Outlaw Masters, the "staccato, high-pitched sound" before the ghost in Séance was made from "the trill of a Japanese insect" [85], a quotation that reaches the record second-hand. Critics describe Cure (1997) as nearly scoreless, built on "the incessant low humming of an empty washing machine," "hollow gusts of wind," waves and fluorescent buzz, so that innocuous sounds acquire "an acutely sinister edge" [86]; no Kurosawa statement on the washing machine or on the absence of score has been found.

Korven, Levi, Krlic, Stetson: the hidden instrument

The 2010s moved from "noise instead of music" to music that hides what it is made of, and the composers describe the concealment as the point. Mark Korven on The Witch (2015): Eggers "didn't want any electronics"; "He didn't want the music to be traditional, in melody or harmony, or anything that brought it back to the 1630s"; "Rob wanted a very dissonant score that never let up" [87]. The means were "the Swedish nyckelharpa, a medieval bowed string instrument," "a megabass waterphone," a choir given "very loose direction" and "Most of the percussion was done by abusing the cello"; "I was basically starting the score on 10 as far as dissonance went," so "The trick was finding the hills and valleys" [88]. His Apprehension Engine, a box of bowed metal rulers and springs, was built so that "it does create some interesting hybrid textures between sound and music" [89]. Mica Levi on Under the Skin (2013): "It's viola, it's false harmonics, and slowed down percussion." "It's distorted, it's too slow, it's like uncomfortable you know"; the aim was "the sensory way into your gut, that is abstract" [90], under Jonathan Glazer's direction "to write to follow Scarlett Johansson's character, and to write away from the picture" [91]. Bobby Krlic on Midsommar (2019): "Ari didn't want them to be made with the use of a computer"; "All the electronics in Midsommar were made with synthesizers and tape loops" [92], with high strings, gongs and cymbals recorded then "putting them all to tape and slowing them down" [93], and "There are a lot of things that might slip under the radar as sound design that are actually score" [94]. Stetson on Hereditary: "What may sound like droning synths in the soundtrack are contrabass clarinets played in different ways"; "B-flat clarinet is responsible for suspension/tension-building material that most people think of as tremolo strings"; the goal was "the most anonymous, most autonomous identity of soundscapes" [95]. Carter Burwell's No Country for Old Men (2007) tones were built from sine and sawtooth waves so that the music comes out of and sinks back into Lievsay's processed effects, an account that reaches the record as a search excerpt [96]. Korven states the risk plainly: "It's modern textural scoring. It's blending sometimes a little too well with sound design." [97]

The counter-tradition is also on record. Joseph LoDuca, of The Evil Dead: "you need the bass for the extra oomph in horror," but also "Just give me a few strings. Let me be intimate." "That's scary too! In many ways scarier." [98]. Tim Lucas's account of Bava's Black Sunday contrasts Roberto Nicolosi's sparing score, with the climactic fight unscored, against Les Baxter's American replacement, "boisterous, unsubtle, boldly orchestrated, incessantly busy," underlining "every droplet of dripping blood" [99]. Carpenter's Thing tones, Bell's library and Kurosawa's real-world sources converge on a single maker claim: when the sound cannot be filed as music, the ear cannot discount it as commentary, and it reads as part of the place.

The measured hook for this section is a content analysis. Blumstein, Davitian and Kaye coded 102 thirty-second clips and found that horror soundtracks "suppressed abrupt frequency transitions and musical sidebands, but had more non-musical sidebands, and noisy screams than expected" [100], which is to say that what the makers call noise and roughness is what the spectrograms of the genre contain. Whether that noise produces fear is section 11's question.

Takeaway: From Bell's cymbals to Stetson's clarinets, the makers describe the same operation: remove the cues (melody, harmony, a recognisable instrument) that let the ear classify a sound as music, so that it is heard as an attribute of the world instead of a comment on it. Hooper wanted the film to "enter your mind the way music does"; Kurosawa ranks sound above the image; Korven admits the texture blends "a little too well" with effects. That blending is the stated goal, not an accident.

"No music": Hitchcock and the scoreless reference

The on-record rationale for silence is consistent across sixty years, and it is not about quiet; it is about removing instruction. Screenwriter Evan Hunter recalled Hitchcock deciding there would be no score for The Birds and, when Hunter argued that music could heighten the terror, answering "No music" [101]. Hitchcock's general principle, from the same account: "In a good movie, the sound could go off and the audience would still have a perfectly clear idea of what was going on" [101]. Herrmann's credit became "sound consultant"; the approach, in a scholar's summary, was that "the realistic sound of bird cries would create a musiclike rhythm and pace" and that "Sounds would be 'orchestrated' in terms of tempo and dynamics" [102]. Hitchcock's October 1962 dictated notes on the psychological effect of each background sound exist at the Margaret Herrick Library and could not be read; the widely quoted "electronic silence" wording for the final scene is therefore unverified here. The attributed Hitchcock aphorism, "There is no terror in a bang, only in the anticipation of it," reaches the record via Halliwell [103] and should be carded as attributed. Skip Lievsay, who supervised the sound of No Country for Old Men (2007), calls Hitchcock's choice "the most dramatic audio choice that you can make, even more than silence" [101], and his own film is the reference everyone else cites: "The idea here was to remove the safety net that lets the audience feel like they know what's going to happen" [104]. Sound designer Craig Berkey counts "about six music cues in the film, including the song the Mariachi band plays," and describes the method in the Eagle Hotel: "There are several things that happen off screen early in the sequence that force you to focus on the smallest of sounds," which "all lead up to Chigurh's footsteps and floor creaks and the receiver beeping as he approaches Moss' room"; in the Del Rio motel "we underplayed everything: BG's, footsteps, etc., to help create tension" [105]. The silence is a redirection of attention, tuning the ear down to the floor-creak scale before the beep arrives.

What silence is in a mix

Practitioners agree that cinematic silence is almost never zero signal. Walter Murch: "The ultimate metaphoric sound is silence," and holding back music "creates an almost-unbearable buildup of tension," because a film "builds up a kind of electrostatic charge of emotion" [106]. Trevor Gates, supervising sound editor on Get Out and The Haunting of Hill House: "the most effective approach to making an atmosphere quiet is not the absence of sound, it's the isolation of sound" [107]. Mike Flanagan on Hush (2016) explains why true silence fails: "it would make them hyper-aware of the noises they themselves were making," so the team built "audio effects that would imply silence while also completely engulfing the audience," a bed that "is a combination of something like 45 different sounds" sourced from "audio from ultrasounds, I think we used glaciers cracking underwater slowed down" [108]; elsewhere "There were 300 layers of different sounds at times and you wouldn't believe the work that had to be put in to achieve 'silence.'" [109]. Lewis Goldstein on Hereditary's dinner argument: "We wanted to have that scene be as quiet as quiet could be," so "We decided to purposefully noise-reduce the dialogue in that scene to such a point that there was digital artifacting," with the result that "you hear more of the theater ambience than you do of the film's background track"; "A single dB made such a difference in the way a sound would sit" [68]. When the mix drops below the room's noise floor, the theatre itself becomes the ambient bed and the audience's presence is folded into the scene.

The cricket, the implant and digital zero

Three sequences are documented cue by cue. Hereditary's car aftermath, in Goldstein's account: leading in, "We kept building up the music tension, the car engine level, and Charlie's gasping and wheezing"; after the impact, "It's just so quiet. I think there is one simple cricket sound happening." "We're sitting on those distant winds and I think there's a slight ticking of the engine cooling down in the distance." "By this time, you're just so devastated at the silence." The release is withheld until the next morning, and Tom Ryan says "We played with the perspective of Annie's scream a lot, making it start outside the house and then it turns into being inside the house" [68]. Stetson's view of the same film: "Those moments of palpable silence tend to be the most grieving, emotional, devastating, heartbreaking moments," and his score was conceived "as though the very nature of the score was almost an amplification of silence," because "there's no music trying to make you feel something" [30] [95]. A Quiet Place (2018) is the limit case. Erik Aadahl: "Any film that I've ever worked on I've never been able to get to complete silence." "Normally when things go quiet, there is still a little thread of room tone or a single note of music decaying." "There's something so shocking about having total, absolute silence, total digital silence" [110]. Regan's deaf point of view is a "sonic envelope," "a low, internal hum and heart pulse" modelled on an anechoic chamber, and "When she pulls the working implant out of her ear, all sound disappears completely. … Now that is truly 'silent', digital zero which is something we've never done in a film before" [111]; Ethan Van der Ryn confirms the film "went to complete digital zero" at three brief moments [112]. Their principle: "We found that the more sound we stripped out, creatures vocals, etc, the more intense the existing sounds became," citing Jaws for "the negative space in sound" [111]; the audience consequence, "people were afraid to eat their popcorn in the theatre!" [112]. Flanagan and Aadahl are complementary: one avoids zero because it makes the audience self-conscious, the other uses zero for exactly that shock, but only inside a character's head where self-consciousness is the point. Marco Beltrami's statement on the same film's score is the composer's side: "as soon as you do anything musically or sonically at all, it calls attention to itself" [113].

Directors on silence: Wan, Peele, Flanagan, Whannell

The directors state the silence rule as a position against the studio norm. James Wan, 2011: "We wanted a lot of the scare sequences to play really silent"; "I find silence in horror films really scary and the only way to do that is outside of the studio system," because studios would say "You have to sting it with a loud musical cue"; his design is "to set you on edge with a really loud, sort of like, atonal scratchy violin score" between the silent scares [114]. Five years later: "The presence of music is very powerful, but so is the absence of sound as well and the absence of music" [115]. Jordan Peele, as Abels recalls his first meeting, spoke of "how important silence was in music and creating tension" [43], and for Nope the brief was "I want silence to be part of the score" [116]. Flanagan, via the Newton Brothers: "he really uses the silence and the space before a surprise," so scoring before it "would have taken away from that effect"; on Gerald's Game "We decided that the scene would be more impactful without music, and we took it out" [117]. Whannell, via Wallfisch: "A lot of it was about articulating and using silence in a very rhythmic way." "So you almost don't trust the absence of music when there's silence." "By doing that the silence almost becomes a musical event" [27] [118]. Kurosawa's Pulse supplies the East Asian instance in Whittington's description: "The soundtrack falls silent as she studies the mark… then a single voice, isolated in the surround speakers, whispers: 'Help Me.'" [4]. Alec Morgan's scholarship reads Kurosawa's silences through ma, the space between, arguing that his sound gives silence "a living face" [119].

Dynamic range, loudness and the streaming problem

The mixers frame horror as the genre that most needs the whole range. The Conjuring 3 team: Jay Jennings, "The two biggest concepts were contrast and dynamic range," and "You take away anything that can tell the audience how to feel so that they're just on edge immediately"; Mike Babcock, "We took everything out and all you hear is just David's light movement; there's nothing"; Slater, a mix that is "healthy-loud in the right places and super quiet in the quiet places," "using the dynamic range of the speaker system, from zero to 10" [120]. Gene Park on Midsommar: "We wanted to use the full dynamic range in this film so there are some dialogue scenes where we made it feel like we sucked out all of the sound," and "If it's quieter there then we have more room for sound later" [121]. Gates: "Don't be afraid to get quiet, and to allow yourself that quietness so that you can get loud later" [122]. Murch gives the numbers and the warning: in the 1960s "the loudest sounds in the film could be six decibels over the level of average dialogue"; digital reaches "110db, which is close to the threshold of pain," which he compares to "giving a Ferrari to a teenager"; Kubrick mixed three decibels below normal; sustained loudness means "Your ears would get tired of it before the scene was over" [106]. Jennings: "Movies shouldn't be loud all the time. It's okay to be dynamic" [120]. The failure mode is named by everyone as fatigue, Babcock's "bludgeoning you over the head with everything" [120]. And as of Oct 24, 2026 the range is under threat from delivery: Slater notes that under loudness normalisation "that distant music is going to just disappear off a cliff" [120], and Hill House had to work on laptops [122]. Kubrick wanted the opposite in one room: the Gold Room songs in the red bathroom "quite a loud so that the words of the songs could be heard" where Stainforth had thought they should be "played very softly" [53].

Takeaway: Silence in horror is the withdrawal of the cue that tells the audience how to feel, and the makers describe it in one vocabulary: Hitchcock's "No music," Lievsay's "safety net," Jennings's "anything that can tell the audience how to feel." It is built, not left: 45 to 300 layers for Hush, a single cricket for Hereditary, a dB-by-dB adjustment until the theatre's own hum is audible. Digital zero was first reached in 2018 and only inside a deaf character's head. The dynamic range that makes the quiet work is the same range streaming normalisation removes.

The bus and the shower

The founding jump scare is a sound effect. Editor Mark Robson called the device "the bus," an "editing device [he] created by accident" in Cat People (1942), and "put a loud sound of air brakes on it so that it knocked viewers out of their seats" [123]. Tourneur's visual half was restraint: "I had only intended to suggest the cat's presence by shadows" [123]. Music scholar James Deaville dates the first classic jump scare to the Lewton bus and argues that in Psycho the constant shower water, not Herrmann's strings, is what makes the violence unexpected; silences, he says, are "necessary for jump scares to have their full impact" [124]. Herrmann's own intent for the shower cue was "Terror." [8], and the Psycho strings play muted everywhere except that scene, so the one moment the strings open fully is the shock [9]. The emotional logic of the bus is false security followed by a benign loud event, which re-frames the preceding dread as the viewer's imagination; the logic of Jaws, as section 2 showed, is the opposite, a theme that is always honest and therefore can be withheld once.

The recipe: a lull with the transients filed off

The clearest practitioner recipe is Joe Dzuban's, after five films with James Wan. "Jump scares work best when the audience least expects them"; to build the lull, "Take the transient 'edges' off of door closes or footsteps, or EQ them a bit so they are tucked into the mix," the lull's length varying by film; "For the sting itself, use sharp, strident sounds and play them 'loud and proud.'" [76]. Wan's brief for The Conjuring 2 was that the sound be "dynamic while having a slow crescendo throughout," and in the mix "You have to pick your moments and really clear out the other sounds without taking the energy away" [65]. Jon Lawless, mixing Undertone: "You can make anything sound louder by making the preceding scene quieter" [125]. Paul Hackner on It: "perceived silence, created by small transients such as water drips, foot creaks, or actual silence, were revealed," and in the final mix "Andy essentially conducted the peaks and valleys of the sound design and score" [62]. Peter Brown, sound editor on the Paranormal Activity sequels, describes the template as "a moment of quiet... That is immediately followed by a large explosion of sound when he is attacked" [126]. Gates's version is the shortest: "You'll definitely get your fair share of dynamics here. A lot of quiet followed by loud" [107]; for one Hill House banging sequence "I had to add about 40% more sound, with some low-end impacts" [122]; and his statement of what the restraint buys, "The restrained use of sound draws the audience in so that when a scare happens, it has space to be loud and scary as hell" [122]. Gene Park on Midsommar adds the swell and the cut: "we added these big swells that would cut out hard," and the subwoofer came in "whenever Ari was feeling the need for a pulse" [121]. Putting these together gives the makers' envelope: lull (isolated quiet, transients removed), swell (sub pulse or riser), hit (strident sound plus added low end), release (cut out hard). No practitioner reached itemised the hit as impact, metal, whoosh and braam, or discussed a post-hit "sub drop"; that vocabulary belongs to library and trailer marketing.

The weight of the picture edit is attested only as a search excerpt. Rich Bologna, on Halloween Ends, reportedly said that "85% of making jump scares work happens on the editing side" and that what matters is "the rhythm of how the picture is cut"; the article could not be retrieved and the figure is unverified. Oren Peli's account of Paranormal Activity is consistent with it: what worked was "any audio or movement that heightened the tension and anticipation"; "It can make a difference of a few seconds here and there"; "I was messing with the timing and tweaking everything for months" [127]. The film has no score; a critic describes "a low rumble used to alert viewers seconds before every creepy moment" [128], and Peli's own reasons for omitting music have not been found. Ridley Scott's Alien shows a director rationing by removal: in the pump room Goldsmith scored the whole scene and Scott used no music until the alien appears, and the same happens at Ash's malfunction [129]; Terry Rawlings: "I think the slowness of it made the moments that you wanted people to be sort of scared" [73].

The quiet scare and the abandoned stinger

Two variants are documented. The Conjuring 3 team describe "quiet scares," "real sounds played in odd or unexpected ways," "meant to put you on edge rather than blast you out of your seat with a super loud sound"; Babcock: "things that are organic but slightly off, that just pull your ear" [120]. Park on the Midsommar cliff: "with the hammer hits, one is hyper-realistic sounding and then another one has no sound" [121]. Gates on Ouija: Origin of Evil: "There is no loud bang, but in the theatre, the audience had a visceral response" [107]. The swell that resolves into wrongness instead of volume is the dynamic counterpart of what Acosta and Sears call the abandoned stinger, a cue that primes "regardless of whether the jump scare actually occurs" (section 11).

The directors who ration it

Several directors speak against the device while using it. Ari Aster says Hereditary has "a few" jump scares and "they kind of grew organically out of what I was writing as opposed to me looking for them"; what scared him was "something standing in the dark and just looking at me" [130]. Osgood Perkins: "those kind of 'jack in the box' movies don't do anything for me"; "I like that less is more approach"; he wanted to "leave room for dread to flow into the pauses and the loneliness and the dark places" [131]. Fede Álvarez: "I hate when the music is more exciting than what's actually happening on the screen" [132]. Robert Eggers says horror cold opens, "when they're done successfully… keep you on edge of your seat for the rest of the film" [133]. Flanagan's reported line that loud noises and jump scares are "lazy" is a search excerpt from a blocked page; what his collaborators say on the record is Gates's "I think this is a powerful tool that is often abused." "It's a cheap trick. But that doesn't mean that all jump scares are cheap" [107], and the Newton Brothers' "The occasional jump scares are always fun to do as long as they're tastefully done," with Flanagan's note on one, "Let's gas this. Let's turn it up" [134]. Fuoco's critical analysis of The Thing's blood-test scene describes a startle "fully foreshadowed at the beginning; there is an openly implied threat that does eventually make us jump," against the commoner form, "a drawn out silence filled with a sudden loud noise" [135]. Weapons' team states the current taste: "We tried our hardest not to lean too much into that typical horror sound moment," while conceding the composers "came up with some amazing stings, and those are really the sounds that hit you over the head with those jump scares" [77].

The laboratory's contribution, developed in section 11, is that the reflex under the sting habituates while the fear riding on it does not: blink magnitude declines across repeated probes, but the difference between unpleasant and pleasant contexts "remained stable within film fragments and during the entire length of the videotape" [136]. The practical reading, which is an inference from laboratory probes and not a film study, is that a film that sustains dread between stings keeps them effective, and a film that fires stings without dread loses them.

Takeaway: The sting is an envelope, not a hit: a lull with the edges filed off the incidental sounds, a swell, a strident sound played "loud and proud," a hard cut. Robson's air brakes, Dzuban's recipe and Gates's "quiet followed by loud" are the same device eighty years apart. The directors who disown it (Aster, Perkins, Flanagan) still use it, rationed; the reflex shrinks with repetition but the dread it rides on does not, which is the measured reason rationing works.

Set side by side, the briefs are short, emotional and almost never technical. Whale, 1935: "Would you write an unresolved score for it?" [10]. Argento, 1977: "I want the music to always scare the people even when nothing is happening on the screen" [24]. Friedkin, 1973, after rejecting Lalo Schifrin: "[The score] was wall-to-wall noise, using every component of this big band, including electric brass…I was in shock." "It's not that the music was badly written or played; but it was the opposite of what I wanted" [137]; what he wanted, in the 1974 Castle of Frankenstein interview, was "understated music. The music is just a presence like a cold hand on the back of your neck, rather than assertive" [40], and in a 1974 seminar, "No so-called frightening music. No wall-to-wall music. [...] No music behind the big scenes. No music ever behind dialogue, when people are talking" [56]. Schifrin's side: "The truth is that it was one of the most unpleasant experiences of my life"; "I'm sure he did it deliberately" [138]. The result was roughly seventeen minutes of music in a two-hour film, with Penderecki, Webern and Henze fragments confined to transitions [39]. Carpenter, 1982: "Ennio, use less notes" [22]. Spielberg's brief to Williams was an expectation the composer overturned: Spielberg had expected something like Williams's Images score, "all about Japanese sounds and shakuhachi and percussion," and Williams told him "the sophisticated approach you would like me to take isn't the approach you took with the film I just experienced" [15] [17].

Kubrick worked by selection and intensification rather than commission. Six weeks before release he wanted something "altogether more disturbingly freakish and manic" than the Carlos/Elkind score; Stainforth listened to about fifty hours of Penderecki, and Kubrick "told me exactly where he wanted each music cue to start and finish," asking for "a choice of about three or four different pieces of music per cue" and nudging "in a particular direction, of a kind of manic madness." At the climax: "You've got to beef it up, Gordon!" "Just lay two pieces on top of each other!" "Oh, they'll never notice!" [53]. The Bartók in the Jack-Danny bedroom scene was Stainforth's idea for a scene where Kubrick had wanted no music [53]. The layered Penderecki in the maze is therefore a construction, not a quoted work, and every per-scene emotional reading of The Shining's music is a critic's [139].

The contemporary briefs are two rules at most. Aster to Stetson: "It had to feel evil; and (2) It had to be utterly devoid of sentimentality" [95]; to Krlic, that Midsommar was "a twisted fairy tale," not a horror film, with the script "written entirely to my music" and the instruction that electronics not "be made with the use of a computer" [140] [92]; the method was Aster at the piano, "he'd describe things emotionally, and I'd just keep playing until we hit the points together where we felt it was working" [140]. Eggers to Korven on The Witch: no electronics, nothing that "brought it back to the 1630s," "a very dissonant score that never let up," "a 90-minute nightmare" [87]; Korven reports that "Robert Eggers had a very clear idea of the music he wanted before I even started" and "The music is also pretty much all in his head before he makes the movie" [88] [141]. Eggers's reported brief for The Lighthouse, "I only wanted horns, pipes, conch shells, concertina - things that sounded like the sea," reaches the record as a search excerpt of an archived Flaunt Q&A and should be verified [89]; Korven's confirmation is "Rob wanted there to be a connection with the sea, so we thought it should be some kind of wind instrument" [141]. Eggers and Carolan agreed Nosferatu's music must be "scary, but also romantic" because the film is, at bottom, a love story [71]. Peele to Abels: silence as part of the score, music that is "seriously scary" rather than satirical, and duality, "instruments that didn't normally go together, something conventional and something unconventional"; and a veto, "No, you can't empathize here. This is scary" [43]. Flanagan rejected the Newton Brothers' first Hill House themes as "too much for what they saw through the lens" and approved cues that "were naked and empty with piles of space between notes" [134]. Wan to Bishara, the one reference he ever gave: "The only movie where I actually told him, 'I want the score to sound something like this,' was Bob Clark's Deathdream," "because the whole movie is just full of piano banging, and I really wanted that experimental tonal sound" [74]. Whannell sent "absolutely no temp music" and pushed Wallfisch "to be very extreme and left field" [28]. Glazer to Levi: "Get into it what's going on and think about it, but don't be a slave to the imagery" [91]. David Robert Mitchell gave Disasterpeace "an adjective for each scene" distilled from a temp of Penderecki, Cage and Carpenter, with three weeks to write [142]. Cregger, on Barbarian's tunnel, overruled his composer toward less: "Initially I wanted much more active music in this scene, but he was so sure that it should be very subtle – a more subconscious fear in this scene" [42]. Coralie Fargeat kept Herrmann's Vertigo temp for the monster's debut because it worked "on a meta level" [143]. The Philippou brothers insisted that music and sound design be "equal and not have music buried under sound or sound buried under music" [144]. Ti West asked Tyler Bates for a Pearl score in which "it was never a requirement that the music says, 'Ooh, this is scary.'" [145].

The opposite relationship also exists on the record. Howard Shore on Cronenberg: "that's your area, you do that"; "I think he changed four bars of the entire score" of Dead Ringers, and "In Videodrome he did not change a note" [146]. LoDuca on Raimi: "There wasn't a lot of direction: 'This is sad' or 'This is scary,'" and "It's more about me trying to ask the right questions" [98]. Goldsmith on Ridley Scott, whose Alien replaced the composer's romantic frame with a darker rewrite, cues from Goldsmith's own 1962 Freud and Hanson's Second Symphony over the credits: "He wasn't as articulate then about what the music should do" [129]; and Goldsmith's own idea for The Omen, a Black Mass inverting phrases of the Latin Mass, arose from talks with a London choirmaster [147], his first words to his wife being "I hear voices" [148]. Roque Baños, who approached Álvarez himself, built Don't Breathe so that "the house itself was singing the music for these people" from junk instruments, with "very low" drones for the Blind Man "which makes it scarier" and "high pitched instruments and rhythmic material" for the robbers' anxiety [149]. In Longlegs the composer handed over stems and sound designer Eugenio Battaglia reversed them in the mix: "If you hear the film in reverse, you're going to hear a bunch of the score the way it was actually recorded" [150].

Three patterns recur. The briefs name a feeling and a prohibition (unresolved; less notes; evil, no sentimentality; no electronics; silence as part of the score), not a device. The composer is chosen before the shoot and the script is sometimes written to their records (Aster twice, Stetson confirming "he'd been listening to my music a lot while writing it" [30]). And scores written from the script fail against picture: Goblin threw theirs away, Krlic's pre-written material "didn't make it in" [92], and Goldsmith's romantic Alien was dismantled in the edit. Carpenter's gloss applies to all of them: "You don't know what you're going to do" in preproduction, "So it just gets in the way if you think" [20].

Takeaway: Directors brief composers in feelings and prohibitions: Whale's "unresolved," Friedkin's "cold hand on the back of your neck," Carpenter's "less notes," Aster's "evil" without sentimentality, Eggers's no electronics, Peele's silence as score. The technical decisions are the composer's, and in every documented case the music written before the picture existed was rewritten against it. The exceptions, Cronenberg and Raimi, prove the rule by delegating entirely.

Nakata and Kawai: a nursery tune broken by its arrangement

The Japanese makers on record describe a subtractive and timbral method, and Hideo Nakata and Kenji Kawai are the most explicit. Nakata on Ring (1998): the mix was built so that "Your ear can not separate the melody from the sound effects," on fifty tracks of music and fifty of effects, with the composer supervising sound "because he wanted to have very high quality"; the phones were mixed from "four different qualities of phone sounds because they did not want them to sound like Hollywood phones!" [5]. His name for the approach, as Whittington reports it from a 2005 interview, is the "aesthetics of subtraction," repressing sound to create a kind of "quiet" beauty [4]. Kawai, in a 2013 Japanese interview translated by the researchers, describes the instrument he and Nakata invented for Ring: "The sound I call the 'broken violin,' which produces a hysterical tone using a violin that I developed together with Director Nakata for Ring," which he plays himself because "producing this sound puts a lot of strain on the bow and the instrument" [151]. Nakata's standing brief, stated for a 2013 film, is the lullaby device of section 3 in Japanese form: "He said he wanted nursery-rhyme-style music as the main element, with the image of gradually breaking it down." The method: "The melody itself is not broken by changing its pitch; the fear is created through the arrangement of the other instruments." "It starts with a warm, gentle feel and gradually turns into fear." The principle: "The less frightening the melody is, the harder it becomes to express fear." And on the boundary between departments, after once duplicating a sound-effects designer's cue on Ring: "I thought that for horror, perhaps sound effects and music should not be separated" [151]. No Nakata or Kawai statement describes the audio of the cursed tape or of Sadako's emergence cue by cue.

Kurosawa, Shimizu, Miike

Kurosawa's hierarchy, "Sound is more powerful," and his location of fear in "the things that we can't see" [84], were given in section 5; his real-world sourcing, the insect trill before the Séance ghost [85], and the critics' account of Cure's washing machine, wind and fluorescent buzz [86] belong to the same grammar, a drone that is diegetically plausible pushed to the front of the mix so that the place becomes the threat. Whittington describes Ju-on (2002) as "a surprisingly quiet film" built from three sets of elements: ambient effects "to emphasize domestic and urban realities," "'jolts' of low-frequency sounds (such as discordant musical tones and ambiances)" "to trigger anxiety," and "shards of high frequency sound effects (such as chimes, violin strikes and vocalizations)" "to intrigue and shock" [4]. Shimizu's voiced Kayako [61] is the high shard. Takashi Miike's on-record remarks about Audition concern pain, love and the "boring" morning after, not sound; critics call the film "very quiet" with the score receding while "the sound effects are the element that gets louder," and those are search excerpts. The researcher's inference for the torture scene, that it is carried by close, dry foley and Asami's near-whispered sing-song rather than music, is an inference from critics' descriptions and not a maker statement.

The remakes: "characters live and die by the subwoofer"

Whittington's comparison of the Japanese films with their Hollywood remakes is the clearest critical statement of the two grammars. Classical Hollywood would "use a highly-structured and 'transparent' musical score to provide a sense of 'destiny' or 'fate'" whereas in J-horror "sound and music do not function as reliably"; the remakes add "more structured layers of music and sound effects to the ambient and contemplative 'silences,'" with "more extensive use of low-frequency effects," so that "In H-horror remakes … characters live and die by the subwoofer," a strategy he calls "an overcompensation in relation to the Japanese 'aesthetics of subtraction,' which challenges the Hollywood 'rule' to cover all silences with sound" [4]. The Japanese endings' "sickening realization of inevitable annihilation" is, in his reading, displaced in the remakes "into the soundtrack design, depositing it in the lowest registers of film sound" [4].

The lineage: kabuki's ghost cue, Takemitsu's single sound

The vocabulary is older than cinema. Kabuki's ghost cue is the "hyū-dorodoro," a bamboo-flute whistle with the rumbling of a drum, used in kabuki and haunted houses to signal a ghost's arrival [152]. James Wierzbicki's chapter abstract argues that the "metallic" screeching noise that signals a J-horror ghost descends from older Japanese genres and animist belief, that Kawai's and Shiro Sato's scores are "characterized both by timbral transformation and by substantial silence," and that "the combination of subtly shifting sound colours and purposeful silence has done the trick for centuries in theatrical Japanese ghost stories" [153]; the chapter's body is paywalled. Kwaidan (1964) is the twentieth-century hinge, and the record on it is critics' plus the composer's general aesthetic: Tōru Takemitsu's "score and sound design are as crucial as the visuals: silence stretches, punctuated by the snap of bamboo, the crack of ice, or the ghostly echo of a biwa," read through ma, "the concept of 'negative space,' 'gap,' or 'pause'" [154]. Takemitsu's own writing, not film-specific, is the principle: "I wish to search out that single sound which is in itself so strong that it can confront silence," and of a single plucked string, "Between this complex sound, so strong that it can stand alone, and that point of intense silence preceding it, called ma, there is a metaphysical continuity that defies analysis" [155]. The mapping of a low rumble (dorodoro, Ju-on's low jolts, the remakes' LFE), a high thin whistle (hyū, Kurosawa's insect, Kawai's broken violin, Kayako's click) and deliberate silence (ma, Takemitsu's cracks, Nakata's subtraction) is the researchers' synthesis and no single source makes it.

Korea: more music, not less

The Korean makers on record ask for addition where the Japanese ask for subtraction. Kim Jee-woon on I Saw the Devil (2010): the team "first leaned toward minimalist scoring" but "realised we needed something more powerful to go with it. The minimal music simply didn't work"; the opening uses "very passionate operatic music, which becomes like the surface of his inner turmoil," within a deliberate "pattern of tension and relief" [156]. Lee Byung-woo, Bong Joon-ho's composer, scores against the grain: "In The Host, I composed a comical piece for a serious escape scene, which gave director Bong Joon-ho some pause," and for Mother the crime-reconstruction music "wasn't serious, which made it memorable" [157]. Park Chan-wook on Thirst (2009): "My top priority was to make a film that would appeal to our five senses." "I wanted Thirst to be seen, heard, and felt, either by smell or touch" [158]. Na Hong-jin's statements about The Wailing (2016) are about fear rather than sound, "the fear coming from this impossibility of communication" and "a hidden threat deep inside … more terrifying than a dynamic threat" [159]; the production notes say the music by Jang Young-gyu and Dalpalan "combines together ambient noises, strings, and various natural sounds for rhythm," and that the ritual was "shot in a 15-minute long take using 6 different cameras" to keep "the audience off-balance" [160]. The critics' description of that sequence as "commanded by thundering drums and clashing gongs" is a search excerpt, and no Na, Jang or Dalpalan statement about the drums or the cross-cutting has been found. No maker in the record uses the word han. The contrast with Japan is nonetheless in the makers' own words: subtractive and timbral on one side, additive and rhythmic or melodic on the other, and both reject the Hollywood stinger from opposite directions.

Takeaway: Japanese horror sound is stated by its makers as subtraction and a single wrong timbre: Nakata's "aesthetics of subtraction," Kawai's intact nursery melody corrupted by its arrangement and his "broken violin," Kurosawa's real-world trill, Shimizu's own throat. The lineage runs through kabuki's flute-and-drum ghost cue and Takemitsu's one sound that "can confront silence." The Korean makers ask for operatic surges, comic counter-scoring and ritual rhythm. The Hollywood remakes, in Whittington's reading, put the dread back in the subwoofer.

As of Oct 24, 2026 the empirical record divides into three tiers, and most of what the makers claim in sections 2 to 9 sits in the third.

The first tier is measured, and it covers two reflexes and one perceptual effect. The acoustic startle is a brainstem reflex to "sudden, intense stimuli," enhanced by sensitization and fear-potentiation and reduced by habituation, prepulse inhibition and positive affect [161]. In humans it is measured as an eyeblink to white-noise bursts of about 40 ms at 96 to 103 dB(A) [162]. It grows under anticipation: the fear-potentiated effect "became progressively larger in the threat condition the longer the light was on and then abruptly decreased with the onset of the light signaling the no-threat condition" (n = 20) [163]. It grows in the dark: "darkness significantly increased the magnitude of startle but did not affect prepulse inhibition," an effect "attributed to anxiety rather than attention" and correlated with childhood fear of the dark (two studies of 25) [164]. It is potentiated by horror footage: blink magnitude "was larger during fearful fragments than during sexual fragments" across 27 one-minute clips (n = 33) [136]. And its two components behave differently under repetition: "Blink magnitudes habituated across successive film fragments, but the positive-negative difference remained stable within film fragments and during the entire length of the videotape" [136], and in Bradley, Lang and Cuthbert's series "The startle reflex alone ... continued to differentiate among pleasant, neutral, and unpleasant pictures throughout the presentation series" [165]. That is the measured basis of the jump-scare recipe in section 7: a dark room, a sustained threat cue, an abrupt broadband onset, and rationing because the jolt shrinks while the dread does not.

The second measured reflex is aversion to roughness. Arnal and colleagues showed that human screams "cluster within restricted portion of the acoustic space (between ∼30 and 150 Hz modulation rates) that corresponds to a well-known perceptual attribute, roughness," segregated from speech, present "in natural alarm signals as well as in artificial alarms," boosting detection, and engaging "subcortical structures critical to rapidly appraise danger" in fMRI [166]; the 2019 intracranial follow-up found "a nonlinear pattern of aversion restricted to the roughness range" and that rough sounds "synchronise large-scale, supramodal, salience-related networks" [167]. Trevor, Arnal and Frühholz then tested the informal observation that scary film music is "scream-like" and found that "a key feature of human screams (roughness) is imitated by scream-like music and could potentially signal danger through both music and the voice" [168]; their 2023 study of horror excerpts rated by 99 listeners found that "Terrifying music has a brighter, rougher, harsher timbre, is musically denser, and may be faster and louder than anxious music," and that both kinds "tend towards minor modalities and are rhythmically unpredictable" [169]. This is the best-supported acoustic account of why McCambridge's wheeze, Kawai's broken violin, Carolan's groaning strings and a distorted brass stinger frighten: they sit in the roughness band.

The perceptual effect is Chion's added value, measured as the auditory Kuleshov effect. Baranowski and Hecht showed 30 participants neutral actors' faces after a neutral scene with happy, sad or no music and found a music main effect of ηp² = .46: "Happy music made neutral faces seem significantly happier and sad music made neutral faces significant sadder" [170]. Boltz found that mood-congruent music and film "lead to a joint encoding of music/film information as well as an integrated memory code" [171]. Ansani and colleagues, with 118 and then 92 participants, found that an anxious Rachmaninov track against a melancholic Bill Evans one changed empathy for the same character, his attributed personality, whether he was judged to be remembering or planning, the cosiness of the environment and, in the lab, how long viewers looked at a hidden figure, with the anxious score increasing time and revisits on the hard-to-notice character [172]. Dissonance and expectancy have their own measured base: Blood and Zatorre's PET study of ten listeners found paralimbic activity covarying with dissonance and unpleasantness [173]; Koelsch's fMRI found that "Unpleasant (permanently dissonant) music contrasted with pleasant (consonant) music showed activations of amygdala, hippocampus, parahippocampal gyrus, and temporal poles" [174]; Fritz found that a culturally isolated Mafa population and Westerners both preferred consonant over spectrally roughened versions, "suggesting that consonance and permanent sensory dissonance universally influence the perceived pleasantness of music" [175]; and Steinbeis found that with one chord changed in a Bach chorale, "Tension, overall subjective emotionality, and EDA increased with an increase in harmonic unexpectedness" (n = 24) [176]. Lehne and Koelsch's model defines tension as a state "associated with conflict, dissonance, instability, or uncertainty" that builds on "future-directed processes of expectation, anticipation, and prediction" [177], which is Whale's unresolved score in a psychologist's words. The caution is that dissonance maps to unpleasantness, not to fear as such; Blood and Zatorre explicitly found the dissonance response "different from those underlying ... other emotions such as fear" [173].

The second tier is plausible but thin. Blumstein's 2010 content analysis showed what horror soundtracks contain [100]; the only causal test is the 2012 experiment, in which noise and frequency shifts added to neutral music raised arousal and lowered valence, but "the presence of a video image suppressed the ability of simulated nonlinearities to modify arousal" (two groups of 42, ηp² 0.08 to 0.17) [178]. Localisation has only indirect support: surround presentation produced "significantly higher event-related desynchronization" than mono in alpha and low-beta clusters, interpreted as presence [179], and approaching sounds "elicited greater skin conductance responses and phasic alertness" and were rated "more unpleasant, potent, arousing and intense" [180]; nobody has measured fear from a rear-channel voice. The jump scare itself has been studied in the field and in theory but, as of Oct 24, 2026, not yet isolated acoustically. Andersen's haunted-house study (n = 110) found "enjoyment has an inverted-U-shaped relationship with fear" and that fright "is a linear function of large-scale heart rate fluctuations" [181]; Hudson's fMRI of feature-length horror (n = 37, replicated) found "acute and sustained fear are supported by distinct neural pathways, with sustained fear amplifying mainly sensory responses, and acute fear increasing activity in brainstem, thalamus, amygdala and cingulate cortices" [182]. Acosta and Sears propose four stages, baseline, anticipation, stinger and return, and report from unpublished ratings that anticipatory cues "prime participants for an impending jump scare, regardless of whether the jump scare actually occurs," while "jump scares that did not include anticipatory cues were reported to be less expected and more startling" [183]; their registered report will measure heart rate, skin conductance, startle and facial EMG in 60 participants across audio-only, video-only and audiovisual versions, which is exactly the acoustic isolation nobody has done [183]. Martin's 2019 review of the whole field warns that the studies "have varied in sample size, methodology, and materials" and have used "a very restricted variety" of horror films [184].

The third tier is lore, and three claims that circulate as science belong in it. Infrasound as a ghost or fear machine rests on Vic Tandy's single-case report of a 19 Hz standing wave from an extractor fan, in which "V.T. had no idea of the amount of energy (spl) the infrasound had because we had nothing to measure it with" and the frequency was "quick and dirty ... plus or minus 10%" [185]; Sarah Angliss's 2003 Purcell Room concerts gave what she herself calls "a tantalising but inconclusive result" with a primed audience [186]; and the first controlled result with an objective marker, Scatterty and colleagues' 2026 study of 36 participants at about 18 Hz, found that participants "did not detect infrasound above chance" but showed elevated salivary cortisol and higher irritability, disinterest and sadness ratings, moderate effects in one small sample, pointing to mood rather than fear [187]. Gaspar Noé's statement about Irréversible is a verifiable maker claim, "we added 27 Hz of infrasound, a low frequency sound which the police use to stop riots. You can't hear it, but it makes you shake" [188], but the physiology is his assertion, 27 Hz is above the infrasound threshold, secondary writers have drifted the figure to 28 Hz and added "nausea" [189], and no measurement of the print exists. Subliminal sound in The Exorcist is Wilson Bryan Key's claim, repeated by hobbyists, that "the terrified squealing of pigs being slaughtered was mixed subtly into the soundtrack" [190]; what the production record shows is that pigs were recorded and used audibly in the demon's voice [57], so the lore is probably a true fact garbled into a conspiracy. Commercial heart-rate rankings such as the "Science of Scare" panel, a 250-strong unblinded sample with a proprietary composite score and a baseline reference from Shrek [191], are marketing and should be carded as such.

The lore is not weak because it is lore. Everything in sections 2 to 9 that names dread, presence, wrongness, inevitability or grief is a maker's claim, and the makers agree across ninety years, several countries and both departments: Whale and Korven on non-resolution, Williams and Abels on the pulse that tells you what is coming but not when, Hitchcock and Lievsay and Jennings on removing instruction, Robson and Dzuban on the lull before the hit, Nakata and Stetson on subtraction. That consistency is strong craft evidence. But no eye-tracking, skin-conductance or heart-rate study has tested a drone, a withheld stinger, a needle drop, a digital zero, a rear-channel whisper or a director's rationing of scares on horror stimuli, and where a sentence in this report says a sound produces dread, that is the maker's claim, reported as such.

Takeaway: Three things are measured: the startle reflex and its potentiation by darkness and threat, the aversion to roughness that screams and scream-like music share, and the power of music to change what viewers see and remember in the same footage. Dissonance and expectancy violation are measured for tension and unpleasantness, not for fear. Noise as a fear cue, surround placement and the jump scare's acoustic anatomy are plausible but thin. Infrasound, the 27 Hz nausea story and subliminal pigs are lore, and as of Oct 24, 2026 the first preregistered test of the stinger itself has not yet reported.

Several quotations circulate widely and reached the researchers only as search excerpts of blocked pages, and the text above marks them as unverified rather than citing them cleanly: Leigh Whannell's "creepy-ville" line on Insidious; Rich Bologna's "85%" on the picture edit; Mike Flanagan's "lazy" on jump scares; Robert Eggers's "no strings" brief for The Lighthouse; the Takako Fuji and Miike material on Audition's quiet; the "thundering drums and clashing gongs" of The Wailing; Carter Burwell's sine and sawtooth account; Carpenter's "three days" and "done in like an hour" from NPR and Far Out; del Toro's "a lullaby to be the central motif" via a student paper; and Jed Kurzel's looped recordings of his daughter, which is Wikipedia's paraphrase of an unreachable interview. Two famous Carpenter phrases, the "cattle prod" description of stingers and music as "the carpet of a scene," were not found in any fetched source and should be treated as unsourced until located.

Several attributions are second-hand and need the primary text. Hitchcock's "33% of the effect of Psycho was due to the music" is cited to Steven C. Smith's biography via Wikipedia without a verified page; "We used only sounds for the whole of the picture. There was no music" is carried by a programme note that does not name the interview; "There is no terror in a bang, only in the anticipation of it" is attributed via Halliwell. Polanski's "she proved able to hum quite well" is unfootnoted on Wikipedia and the memoir was not read. Kurosawa's insect trill comes through Chris D.'s Outlaw Masters as quoted by Virginie Sélavy. Chion's Voice in Cinema page references come from a translation note, not the book. The Guernica narration of "four tones" and a "Vatican recording" in the Exorcist voice has no named source and is carded as lore; Gavira's leather wallet rests on Mexican press and a Wikipedia citation with no Gavira interview; the Alien hiss as a slowed cat is an unverified aggregator claim against the documented fact that Percy Edwards performed the vocalisations; whether The Shining's Big Wheel sound is production or foley is not established; and the "Lewton bus" wording is Kim Newman's report of Robson.

Three corrections to common lore are honoured throughout. The Jaws theme is an honest narrator, absent from the fake-fin scare and from the shark's climactic appearance, not a cue that fires whenever the audience should be afraid. "Midnight, the Stars and You" was fitted on the last day of The Shining's dub and was not a planned anachronism. A Quiet Place does go to digital zero, three times, inside Regan's point of view; the common assumption that it never reaches true silence is contradicted by its designers.

The maker-statement gaps are large and worth naming for the knowledge-base pass. No Tobe Hooper quotation about Wayne Bell or any cue; no Kubrick statement on music, silence or the mix in his own words (the Ciment interview was unreachable); no Wes Craven statement on the Elm Street rhyme, Bernstein's score or "Red Right Hand"; no Demme explanation of "Goodbye Horses"; no Romero statement of musical intent beyond "right for each specific scene"; no Bava, Clayton, Oram, Komeda or Polanski statement of intent; no Myrick, Sánchez or Peli explanation of refusing a score; no Lievsay statement on The Silence of the Lambs or on suspense technique; no Shimizu statement of why Kayako is a sound; no Nakata or Kawai account of the cursed tape's audio; no Kurosawa statement on Cure's washing machine or its missing score; no Miike or Endō statement on Audition's sound; no Na, Jang or Dalpalan statement on The Wailing's drums; no Mowg, Jo Yeong-wook, Shiro Sato or Takefumi Haketa interview; no Parker Finn or Tapia de Veer statement on Smile's daxophone score (the Variety interview was blocked); no Kyle Edward Ball or Rob Savage statement on refusing score; no Aster statement on his own music in his own words (everything is the composers reporting him); no Dzuban account of the 2013 hide-and-clap; no account of the Poltergeist, Thing or Babadook creature sounds from their makers; and no maker in Korea or Japan using the words han or ma about their own film.

Texts not reached, which the knowledge base should treat as the primary sources for the claims here attributed to catalogues, blurbs and reviews: Donnelly's The Spectre of Sound; van Elferen's Gothic Music; Hayward's Terror Tracks (Wierzbicki, Koizumi, Coyle and the Shining chapter); Whittington's book-length work; Baird's 2000 "The Startle Effect"; Weis's The Silent Scream; Auiler's Hitchcock's Secret Notebooks (the Birds sound notes, p. 516); the Hitchcock-Truffaut chapters on Psycho and The Birds; Smith's A Heart at Fire's Center; Lucas's All the Colors of the Dark; Sinyard's Jack Clayton; Brend's The Sound of Tomorrow; Roman by Polanski; the Lerner collection's chapters in text; Chion's Film, a Sound Art and The Voice in Cinema; Kerins's Beyond Dolby (Stereo); Yewdall's The Practical Art of Motion Picture Sound; Juslin and Västfjäll's definitional text; and the Blu-ray commentaries and featurettes that are the likely primary sources for most of the maker gaps above. The web-search budget for every research thread was exhausted part-way, and Google Books, JSTOR, Project MUSE, Criterion, Rolling Stone, Variety, The Hollywood Reporter, Bloody Disgusting and the Hitchcock Wiki blocked fetches throughout.

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