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 imagegetpixel-musical.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 #define TABLEN# 64# giRtab ftgen 1, 0, $TABLEN, 10, 1 giGtab ftgen 2, 0, $TABLEN, 10, 1 giBtab ftgen 3, 0, $TABLEN, 10, 1 gisin ftgen 11, 0, 1024, 10, 1 giimg imageload "imageOpcode03.png" giimgH, giimgW imagesize giimg instr 1 kndx = 0 kyR oscili .5, .15, 11 kyR = (kyR + .5) * .999 kyG oscili .5, .25, 11 kyG = (kyG + .5) * .999 kyB oscili .5, .4, 11 kyB = (kyB + .5) * .999 ilen = 64 loop: kR, k0, k1 imagegetpixel giimg, kndx / (ilen+1), kyR k2, kG, k3 imagegetpixel giimg, kndx / (ilen+1), kyG k4, k5, kB imagegetpixel giimg, kndx / (ilen+1), kyB kRval = kR * 2 - 1 tabw kRval, kndx, giRtab kGval = kG * 2 - 1 tabw kGval, kndx, giGtab kBval = kB * 2 - 1 tabw kBval, kndx, giBtab if kndx < ilen then kndx = kndx + 1 kgoto loop endif iampgain = .3 kamp madsr 2, 0, 1, 3 kamp = kamp * iampgain ifrq = cpspch(p4) aR oscil3 kamp * kyG, ifrq, giRtab aG oscil3 kamp * kyB * .8, ifrq * 2.01, giGtab aB oscil3 kamp * kyR * .8, ifrq * 1.99, giBtab aR butlp aR, 5000 aG butlp aG, 10000 aB butlp aB, 10000 asigL = (aR + aG)*.9 ; green Left channel asigR = (aR + aB)*.9 ; blue Right channel & red in the middle adelL comb asigL, 1, .25 asigL = asigL + adelL * .5 asigL dcblock asigL adelR comb asigR, 1, .3 asigR = asigR + adelR * .5 asigR dcblock asigR outs asigL, asigR endin </CsInstruments> <CsScore> i1 0 25 8.00 i. 5 20 8.02 i. 10 10 8.07 i. 15 10 8.09 i. 20 5 8.11 </CsScore> </CsoundSynthesizer>