Change parameters to build an exact command. Your agent runs it with sb and gets the WAV.
Command
$ sb get FT6N5NWS69@1 --preset terminal -o split-flap-departures-board.wav
How it's made
Source
motor-driven split-flap cells advance at 11-22 flips/s; each pawl makes a 0.4-4 ms noise tick.
Body
damped plastic plates colour the tick at 650-1800 Hz with broad, short-lived resonances. A moving plate adds 16-28 ms of filtered air/friction, darkening from 4.8 kHz toward 1.7 kHz.
Layers
a second, softer plate-seat impact follows 9-16 ms later; no room reverb or tonal motor whine.
Envelope
columns start successively over 0.3-1.2 s, flutter for 2.5-6 s and stop independently; the last isolated flips settle by 7.3 s. Longer renders repeat fresh update cycles every 8 s.
Variation
seeded column speed, stop time, plate tuning, timing jitter and contact strength; pan follows each column, making the update travel left to right rather than spray randomly.