<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 event.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Initialize the global variables. sr = 44100 kr = 4410 ksmps = 10 nchnls = 1 ; Instrument #1 - an oscillator with a high note. instr 1 ; Create a trigger and set its initial value to 1. ktrigger init 1 ; If the trigger is equal to 0, continue playing. ; If not, schedule another event. if (ktrigger == 0) goto contin ; kscoreop="i", an i-statement. ; kinsnum=2, play Instrument #2. ; kwhen=1, start at 1 second. ; kdur=0.5, play for a half-second. event "i", 2, 1, 0.5 ; Make sure the event isn't triggered again. ktrigger = 0 contin: a1 oscils 10000, 440, 1 out a1 endin ; Instrument #2 - an oscillator with a low note. instr 2 a1 oscils 10000, 220, 1 out a1 endin </CsInstruments> <CsScore> ; Make sure the score plays for two seconds. f 0 2 ; Play Instrument #1 for a half-second. i 1 0 0.5 e </CsScore> </CsoundSynthesizer>