<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform ; Audio out Audio in No messages -odac -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o lowres.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Initialize the global variables. sr = 44100 kr = 4410 ksmps = 10 nchnls = 1 ; Instrument #1. instr 1 ; Use a nice sawtooth waveform. asig vco 5000, 440, 1 ; Vary the cutoff frequency from 30 to 300 Hz. kcutoff line 30, p3, 300 kresonance = 10 ; Apply the filter. a1 lowres asig, kcutoff, kresonance out a1 endin </CsInstruments> <CsScore> ; Table #1, a sine wave for the vco opcode. f 1 0 16384 10 1 ; Play Instrument #1 for two seconds. i 1 0 2 e </CsScore> </CsoundSynthesizer>