Vacuum Cleaner

How it's made

Source

an upright vacuum at steady speed on carpet. A 260-390 Hz motor rotation family supports softer 2nd, 3rd and 5th harmonics; impeller blade passage adds a restrained 2.1-3.1 kHz whine.

Airflow

pink turbulence fills 160-2600 Hz, with a broad intake band around 900-1700 Hz and a separate 3-8 kHz exhaust hiss. Low-Q shaping avoids a piercing stationary whistle.

Body

broad plastic housing colour near 230 Hz and carpet brush friction at 100-950 Hz; brush contact has shallow 78-98 Hz amplitude ripple, not individual impacts or debris clicks.

Envelope

continuous six-second sustain, without start or stop. Shared load cycles at 1/6 and 1/3 Hz move motor pitch by under 0.5 percent and airflow by under 6 percent; engine crossfades seam.

Variation

seeded phases and motor tuning within 0.3 percent. Power sets shaft and blade speed; carpet load reduces air brightness, increases brush friction and slightly lowers motor pitch.

Presets

short pile balances all layers; deep pile emphasizes loaded brush and muffled airflow; gentle cleaning lowers speed and hiss; strong suction raises blade pitch and intake/exhaust energy.

Space

dry, compact mono appliance source, with no baked-in room reflections or stereo widening.

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