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 ; Audio out Audio in -odac -iadc ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o abs.wav -W ;;; for file output any platform ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; nchnls = 2 gaReverbSend init 0 ; a simple sine wave partial instr 1 idur = p3 iamp = p4 ifreq = p5 aenv linseg 0.0, 0.1*idur, iamp, 0.6*idur, iamp, 0.3*idur, 0.0 aosc oscili aenv, ifreq, 1 vincr gaReverbSend, aosc endin ; global reverb instrument instr 2 al, ar reverbsc gaReverbSend, gaReverbSend, 0.85, 12000 outs gaReverbSend+al, gaReverbSend+ar clear gaReverbSend endin f1 0 4096 10 1 { 4 CNT { 8 PARTIAL ; start time duration amplitude frequency i1 [0.5 * $CNT.] [1 + ($CNT * 0.2)] [500 + (~ * 200)] [800 + (200 * $CNT.) + ($PARTIAL. * 20)] } } i2 0 6 e