Machine Shop Ambience

How it's made

Source

two belt-driven lathes; 68-112 Hz motor harmonics under 0.7-2.7 kHz spindle whine. Independent slow speed wander and 9-15 Hz amplitude flutter model load and bearing vibration.

Cutting

filtered pink/white friction at 0.8-6 kHz swells over 3-9 s as tools contact stock; spindle pitch droops with load, and its upper harmonic is weaker than its fundamental.

Body

tool clanks excite steel modes near 410, 693, 1123 and 1792 Hz, with 0.18-0.85 s T60; a 2 ms rounded noise strike adds contact detail, upper modes dying sooner than lower modes.

Events

tools fall at 0.08-0.5 events/s; distant hammering comes in 3-6 strike work phrases, spaced 0.44-0.72 s, with 3-7 s pauses. Hammer bodies ring at 230-1350 Hz for 0.12-0.48 s.

Space

decorrelated ventilation at 80-1700 Hz, short 29/47 ms wall reflections on impacts; distance reduces high frequencies and narrows the scene without adding a cavernous tail.

Envelope

continuous beds breathe independently; every contact has a finite soft onset and tail.

Variation

seeded timing, mode tuning, strength and pan; presets change spindle speed, cutting load, tool handling, hammer activity and perspective, from precision work to a busy repair shop.

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