Soul Drain

How it's made

Source

a reversed, sucked-in magical tone. Three slightly detuned triangle/sine partials (1 : 2.01 : 3.02) form the "life energy" voice; a pink-noise breath is pulled through a rising band-pass like air drawn inward.

Body

the tone's pitch glides upward from about 150 Hz to 700 Hz on an exponential curve (things sped up as they are drained) with a 4-7 Hz wavering vibrato and slow random drift that grows with the glide; a low-passed upper partial opens with the swell. The breath band-pass (Q ≈ 2.5) climbs from 400 Hz to 3.5 kHz.

Envelope

reversed-tone shape: a slow exponential swell over about 80 % of the length, then a sudden cut-off (the energy is gone). The cut-off leaves a hollow end: a short pitch-dropping sine thump plus a damped resonator (≈ 180 Hz and odd-ish partials, 0.35 s) rings like an emptied vessel, and fades to silence.

Variation

`rng` offsets the glide range by a few percent, the drift, and the detune of the partials; macros control length, waver depth, breath amount and hollowness; presets change those toward other uses.

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