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.
; 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 pvsinit.wav -W ;;; for file output any platform ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; by Victor Lazzarini ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 gfsig pvsinit 1024,256,1024,1 instr 1 a1 diskin p4 fs1 pvsanal a1,1024,256,1024,1 gfsig pvsmix fs1,gfsig endin instr 2 a1 pvsynth gfsig outs a1, a1 ; clear fsig gfsig pvsgain gfsig,0 endin i1 0 4 "fox.wav" i1 0 4 "beats.wav" i2 0 4