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 No messages -odac -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o FLbutton.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; Using FLbuttons to create on screen controls for play, ; stop, fast forward and fast rewind of a sound file ; This example also makes use of a preset graphic for buttons. ; sr = 44100 ; kr = 44100 ; ksmps = 1 ; nchnls = 2 FLpanel "Buttons", 240, 400, 100, 100 ion = 0 ioff = 0 itype = 1 iwidth = 50 iheight = 50 ix = 10 iy = 10 iopcode = 0 istarttim = 0 idur = -1 ;Turn instruments on idefinitely ; Normal speed forwards gkplay, ihb1 FLbutton "@>", ion, ioff, itype, iwidth, iheight, ix, iy, iopcode, 1, istarttim, idur, 1 ; Stationary gkstop, ihb2 FLbutton "@square", ion,ioff, itype, iwidth, iheight, ix+55, iy, iopcode, 2, istarttim, idur ; Double speed backwards gkrew, ihb3 FLbutton "@<<", ion, ioff, itype, iwidth, iheight, ix + 110, iy, iopcode, 1, istarttim, idur, -2 ; Double speed forward gkff, ihb4 FLbutton "@>>", ion, ioff, itype, iwidth, iheight, ix+165, iy, iopcode, 1, istarttim, idur, 2 ; Type 1 gkt1, iht1 FLbutton "1-Normal Button", ion, ioff, 1, 200, 40, ix, iy + 65, -1 ; Type 2 gkt2, iht2 FLbutton "2-Light Button", ion, ioff, 2, 200, 40, ix, iy + 110, -1 ; Type 3 gkt3, iht3 FLbutton "3-Check Button", ion, ioff, 3, 200, 40, ix, iy + 155, -1 ; Type 4 gkt4, iht4 FLbutton "4-Round Button", ion, ioff, 4, 200, 40, ix, iy + 200, -1 ; Type 21 gkt5, iht5 FLbutton "21-Plastic Button", ion, ioff, 21, 200, 40, ix, iy + 245, -1 ; Type 22 gkt6, iht6 FLbutton "22-Plastic Light Button", ion, ioff, 22, 200, 40, ix, iy + 290, -1 ; Type 23 gkt7, iht7 FLbutton "23-Plastic Check Button", ion, ioff, 23, 200, 40, ix, iy + 335, -1 FLpanelEnd FLrun ; Ensure that only 1 instance of instr 1 ; plays even if the play button is clicked repeatedly insnum = 1 icount = 1 maxalloc insnum, icount instr 1 asig diskin2 "beats.wav", p4, 0, 1 outs asig, asig endin instr 2 turnoff2 1, 0, 0 ;Turn off instr 1 turnoff ;Turn off this instrument endin </CsInstruments> <CsScore> ; Real-time performance for 1 hour. f 0 3600 e </CsScore> </CsoundSynthesizer>