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 RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o loop_lt.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 seed 0 gisine ftgen 0, 0, 2^10, 10, 1 instr 1 ;master instrument ininstr = 5 ;number of called instances indx = 0 loop: prints "play instance %d\\n", indx ipan random 0, 1 ifreq random 100, 1000 iamp = 1/ininstr event_i "i", 10, 0, p3, iamp, ifreq, ipan loop_lt indx, 1, ininstr, loop endin instr 10 ipeak random 0, 1 ;where is the envelope peak asig poscil3 p4, p5, gisine aenv transeg 0, p3*ipeak, 6, 1, p3-p3*ipeak, -6, 0 aL,aR pan2 asig*aenv, p6 outs aL, aR endin </CsInstruments> <CsScore> i1 0 10 e </CsScore> </CsoundSynthesizer>