Paperone-shot · 2.05 s
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Letter into Envelope
A folded letter slides smoothly into an envelope with soft fiber friction and a light final tap.
one-shot · 1.07 s · 0 downloads · 0 likes
0.00 / 1.07 sLight airmail
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get 19221TGA1K@1 --preset airmail -o letter-into-envelope.wav
How it's made
- Source
- folded paper rubbing inside an envelope; pink and white friction bands at 350 Hz-7 kHz. A few overlapping 18-45 ms fiber catches roughen the slide without tearing or crackling impulses.
- Body
- broad, heavily damped paper flex bands near 480 and 1150 Hz; no pitched ringing or room tail. The envelope mouth initially exposes bright fibers, then masks treble as the letter moves inside.
- Envelope
- 25 ms mouth contact, a hand-driven slide lasting 0.65-1.15 s with uneven pressure, followed by a 6 ms attack / 65 ms release soft edge tap and 80 ms settling rustle.
- Modulation
- cutoff falls from 4-7 kHz to 1.8-3.2 kHz; slow random pressure and irregular catches break up the friction. A snug fit introduces a second push in the same insertion gesture.
- Variation
- named random streams vary grain, catch timing and body tuning by 5 percent. Presets cover light airmail, thick cotton stock, a snug envelope and a brisk office insertion.
- Space
- dry close perspective, centered mono for placement by the scene mixer; no baked-in reverb.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| slide | 0.65 – 1.15 | 0.94 | s | Slide duration |
| stock | 0 – 1 | 0.4 | — | Paper thickness |
| grain | 0 – 1 | 0.35 | — | Fiber texture |
| snug | 0 – 1 | 0.15 | — | Envelope resistance |
| tap | 0 – 1 | 0.35 | — | Final contact |
| 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
- r12026-10-25engine 1.0.1use('19221TGA1K@1')