tok.sound.lengthLength
Duration of the sound.
Sizes
SizeValueUse
s0.2 sNod · surprise
m0.4 sCurious
l0.8 sSad · ending
Rules
- 0.2–0.8 s; fade at the end.
- No looping of long sounds.
Evidence
heuristic. Volume is not a token; state (quiet hours …) sets it.