<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o sandpaper.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 idmp = p4 a1 line 2, p3, 2 ;preset amplitude increase a2 sandpaper 1, 0.01, 128, idmp ;sandpaper needs a little amp help at these settings asig product a1, a2 ;increase amplitude outs asig, asig endin </CsInstruments> <CsScore> i1 0 1 0.5 i1 + 1 0.95 e </CsScore> </CsoundSynthesizer>