; Select audio/midi flags here according to platform ; Audio out Audio in Silent -odac -idac -d ;;;realtime output ; For Non-realtime ouput leave only the line below: ; -o butterhp.wav -W ;;; for file output any platform ; Initialize the global variables. sr = 22050 kr = 2205 ksmps = 10 nchnls = 1 ; Instrument #1 - an unfiltered noise waveform. instr 1 ; White noise signal asig rand 22050 out asig endin ; Instrument #2 - a filtered noise waveform. instr 2 ; White noise signal asig rand 22050 ; Filter it, passing frequencies above 250 Hz. ahp butterhp asig, 250 out ahp endin ; Play Instrument #1 for two seconds. i 1 0 2 ; Play Instrument #2 for two seconds. i 2 2 2 e