This should play if your Web browser has WebAssembly enabled (most do). Most examples will play unless they need to load files. The first time you click Play, Csound will spend a few seconds loading, then play. You can edit this code and replay it.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform ; Audio out Audio in -odac -iadc ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o cigoto.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; Initialize the global variables. ; sr = 44100 ; kr = 4410 ; ksmps = 10 ; nchnls = 1 ; Instrument #1. instr 1 ; Get the value of the 4th p-field from the score. iparam = p4 ; If iparam is 1 then play the high note. ; If not then play the low note. cigoto (iparam ==1), highnote igoto lownote highnote: ifreq = 880 goto playit lownote: ifreq = 440 goto playit playit: ; Print the values of iparam and ifreq. print iparam print ifreq a1 oscil 10000, ifreq, 1 out a1 endin </CsInstruments> <CsScore> ; Table #1: a simple sine wave. f 1 0 32768 10 1 ; p4: 1 = high note, anything else = low note ; Play Instrument #1 for one second, a low note. i 1 0 1 0 ; Play a Instrument #1 for one second, a high note. i 1 1 1 1 e </CsScore> </CsoundSynthesizer>