Occult Foley Matrix

STANDBY

Infrasound & Sub-Drone

38 Hz
Sub-Bass Frequency
Sub Rumble Drive 65%

Dissonant Harmonics

18 cents
Microtonal Detune
Shepard Tension Pitch 110 Hz

EVP Radio & Tape Flutter

3.4 Hz
Ghost Voice Formant Filter 750 Hz
Analog Tape Wow / Drift

Acoustic Space (Occult Hall)

72%
Dark Cavern Reverb Size
Master Foley Gain 78%
FREQ SPECTRUM 20 Hz - 8 kHz
SPECTRAL TENSION: 4.2 / 5.0
REAL-TIME OSCILLOSCOPE
Infrasound Pressure
18.9 mPa
Below 40Hz resonant threshold
Dissonance Ratio
0.82 Tritone
Flatted 5th occult tension interval
Buffer Sample Rate
48,000 Hz
Local 32-bit floating point engine

How Horror Game Audio Weaponizes Sound & Infrasound

When Netflix and studio developers announced a terrifying new game in The Conjuring universe, horror gaming fans immediately homed in on the sensory mechanics. Unlike high-octane action games that rely on loud percussive blasts, true psychological horror hinges on infrasonic resonance, psychoacoustic dissonance, and silence modulation.

The 19 Hz Ghost Frequency

In acoustic science, frequencies between 17 Hz and 19 Hz sit right near the human eyeball's resonant frequency. Known historically as the "fear frequency," infrasound cannot be consciously identified as a musical pitch, but triggers autonomic adrenaline spikes, hyperventilation, and feelings of dread.

Microtonal Beating & Tritones

Two oscillator tones placed 2 to 15 cents apart do not harmonize; their wave peaks collide in physical space to create an acoustic "throbbing" or binaural beating. Horror audio directors use this technique inside occult rooms to unnerve players before any visual monster appears.

Formant Spectral Whispers (EVP)

By sweeping white noise through narrow bandpass filters tuned to human vocal tract resonance points (700 Hz, 1400 Hz, 2400 Hz), our brains involuntarily search for language inside chaotic radio static—a phenomenon called auditory pareidolia.

Frequently Asked Questions

Can I use exported WAV soundscapes in my commercial indie game or video?

Yes. Every audio loop and jumpscare stinger generated by this tool is synthesized purely in real-time in your local browser using mathematical oscillator functions and white noise algorithms. You own full rights to exported sound files.

How does the jumpscare stinger mechanic work?

The jumpscare button initiates an exponential frequency sweep down from 1.8 kHz to 45 Hz paired with clipped distortion noise, instantly maxing out dynamic range before cutting sharply into high-reverb decay.

Does this tool send audio or files to an external server?

No. 100% of the DSP processing, waveform generation, and WAV encoding executes client-side on your device via the Web Audio API and OfflineAudioContext.