Abandoned Hallway Tone

How it's made

Source

weak drafts through door gaps, modelled by independent pink-noise beds at 100–2600 Hz. A shared 5–30 s gust envelope moves their brightness and level; no oscillator supplies the air tone.

Body

noise excites broad corridor modes near 117, 247, 487 and 823 Hz, Q 7–13, scaled with width. Fixed modal frequencies represent masonry; independent slow excitation wander prevents a static drone.

Events

loose distant fittings rattle at 0.08–0.32 clusters/s. Each has three soft 4 ms attacks, 25–55 ms noise contacts and inharmonic 460–1740 Hz modes decaying over 0.2–0.65 s before reflections.

Space

71–233 ms low-passed early reflections feed a diffuse hall tail with 2.8–6.2 s decay. The enclosure is the subject; treble absorption places fittings beyond the immediate listening space.

Envelope

continuous air swells without silence; a 0.8 s entrance and 1.6 s exit soften any duration.

Variation

seeded tuning changes by 2 percent, contact strengths and positions vary per cluster. Width sets room modes, draft drives air, hollow balances resonances, debris sets rattle density and level.

Presets

sealed wing is low and still; broken windows are draughty; tiled passage is bright and reflective; service corridor emphasizes muffled loose fittings and a narrower enclosure.

The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.