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 ;-Ma ;;;realtime audio out and midi in (on all inputs) ;-iadc ;;;uncomment -iadc if RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o max_k.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; by Stefano Cucchi 2020 ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 instr 1 anoise noise 0.1, 0.1 ; generate some noise arandom randomi 400, 12000, 4 ; generate random numbers from 400 to 1200 ktrig metro 3 ; trigger signal kmin max_k arandom, ktrig, 3 ; minumum value kmax max_k arandom, ktrig, 2 ; maximum value printk 0.2, kmin printk 0.2, kmax anoisehp butterhp anoise, kmin ; hipass filter at kmin frequency anoiselp butterlp anoise, kmax*0.5 ; lopass filter at kmin/2 frequency acomp oscil 0.1, 440 ; comparator signal for consistent amplitude anoisehp balance anoisehp, acomp ; adjusting the volume anoiselp balance anoiselp, acomp ; adjusting the volume outs anoisehp, anoiselp endin </CsInstruments> <CsScore> i1 0 10 e </CsScore> </CsoundSynthesizer>