hdf-0.11: Help/UGen/Filter/decay.help.lhs
> import Sound.DF
> do { n <- brown_noise_m
> ; f <- lf_saw 0.1 0.0
> ; i <- impulse (lin_lin f (-1.0) 1.0 2.0 5.0) 0.25
> ; e <- decay i 0.2
> ; audition [] (out1 (e * n)) }
> import Sound.DF
> do { n <- brown_noise_m
> ; f <- lf_saw 0.1 0.0
> ; i <- impulse (lin_lin f (-1.0) 1.0 2.0 5.0) 0.25
> ; e <- decay i 0.2
> ; audition [] (out1 (e * n)) }