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 lphashor.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; Example by Jonathan Murphy Dec 2006 sr = 44100 ksmps = 10 ; nchnls = 1 instr 1 ifn = 1 ; table number ilen = nsamp(ifn) ; return actual number of samples in table itrns = 1 ; no transposition ilps = 0 ; loop starts at index 0 ilpe = ilen ; ends at value returned by nsamp above imode = 3 ; loop forwards & backwards istrt = 10000 ; commence playback at index 10000 samples ; lphasor provides index into f1 alphs lphasor itrns, ilps, ilpe, imode, istrt atab tablei alphs, ifn ; amplify signal atab = atab * 10000 out atab endin </CsInstruments> <CsScore> f 1 0 262144 1 "beats.wav" 0 4 1 i1 0 60 e </CsScore> </CsoundSynthesizer>