hsc3-0.8: Help/UGen/Noise/tRand.help.lhs
tRand lo hi trig
Generates a random float value in uniform distribution from lo each
time the trig signal changes from nonpositive to positive values
> import Sound.SC3.Monadic
> do { t <- dust KR (mce [5, 12])
> ; f <- tRand (mce [200, 1600]) (mce [500, 3000]) t
> ; audition (out 0 (sinOsc AR f 0 * 0.2)) }