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 -odac ;;;realtime audio out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o lposcil.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 instr 1 kcps = 1.5 ; a fifth up kloop = 0 ; loop start time in samples kend = 45000 ; loop end time in samples asig lposcil 1, kcps, kloop, kend, 1 outs asig, asig endin </CsInstruments> <CsScore> ; Its table size is deferred, ; and format taken from the soundfile header. f 1 0 0 1 "beats.wav" 0 0 0 ; Play Instrument #1 for 6 seconds. ; This will loop the drum pattern several times. i 1 0 6 e </CsScore> </CsoundSynthesizer>