Chainsaw High Throttle

How it's made

Source

a single-cylinder two-stroke fires once per turn, 155-225 Hz (9300-13500 rpm). A band-limited pulse train models exhaust pressure; cycle-gated noise models combustion variation.

Body

a broad muffler band near 680 Hz and casing vibration at twice crank speed colour the buzz. Chain links rub the guide bar as a rough 1.4-6 kHz noise bed with a weak tooth-passage component.

Envelope

continuous high throttle, with 3.25 Hz torque ripple and smooth 1.7 Hz random rpm wander; correlated level and spectral motion prevent a static drone. The engine crossfades the 4 s seam.

Variation

independent seeded combustion, chain and intake noise; rpm, chain wear, torque instability and air absorption distinguish free-running, loaded, worn-chain and distant high-throttle presets.

Space

dry mono point source, no baked-in room; 45 Hz high-pass and gentle treble rolloff remove rumble and unnecessary ultrasonic fizz while preserving the intentional mechanical rasp.

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