Gameone-shot · 0.54 s
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Low Health Heartbeat Loop
A muffled, steady double-thump heartbeat loop for when the player is close to death
loop · 2.00 s · 0 downloads · 0 likes
0.00 / 2.00 sUnderwater
Preset
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get WQJ2XSJS5F@1 --preset under-water -o low-health-heartbeat-loop.wav
How it's made
- Source
- a heartbeat heard through the chest wall. Each beat is two valve closures, "lub" (the atrioventricular valves, longer and lower) and "dub" (the semilunar valves, shorter and softer). Each is a damped low-frequency pulse whose pitch falls quickly (lub 95 -> 48 Hz, dub 110 -> 60 Hz) plus a short low-passed noise thud for the tissue impact.
- Body
- chest tissue and fluid absorb everything above ~200 Hz, so the sound is muffled: a low-pass at 130-420 Hz and a soft body resonance near 70-90 Hz that rounds the thump.
- Envelope
- lub decays in ~110 ms, dub in ~80 ms at ~65 % level; the dub follows the lub by 0.24 of a beat. A slow swell (a breathing-like tremolo at the beat rate) pushes the pulse out of a dark low-passed rumble bed.
- Rhythm
- strictly periodic. The 2 s loop holds a whole number of beats (2-5), so it repeats without a seam.
- Variation
- `rng` varies each beat's level and tuning by a few percent; presets change tempo, muffling and the strength of the tension bed.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| beats | 2 – 5 | 3 | — | Beats per loop |
| muffle | 0 – 1 | 0.5 | — | Muffling |
| weight | 0 – 1 | 0.5 | — | Thump weight |
| tension | 0 – 1 | 0.3 | — | Tension bed |
| dub | 0 – 1 | 0.65 | — | Second beat level |
| seed | int | 1 | — | Variation, reproducible |
The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.
Revision history1
- r12026-10-24engine 1.0.1use('WQJ2XSJS5F@1')