> Sound.SC3.UGen.Help.viewSC3Help "BRF"
> Sound.SC3.UGen.DB.ugenSummary "BRF"

> import Sound.SC3.ID

> let f = fSinOsc KR (xLine KR 0.7 300 20 RemoveSynth) 0 * 3800 + 4000
> in audition (out 0 (brf (saw AR 200 * 0.1) f 0.3))