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 vco2init.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=1 ; nchnls=2 ; create waveform with discontinuities, so it has a lot of high freq content gitable ftgen 0, 0, 2^16+1, 7, -1, 2^14, 1, 0, -1, 2^14, 1, 0, -1, 2^15, 1 ; make bandlimited tables of the waveform gi_nextfree vco2init -gitable, gitable+1, 1.05, 128, 2^16, gitable gitable_bl = -gitable instr 1 kfreq expon 14000, p3, 500 kfn vco2ft kfreq, gitable_bl asig oscilikt 5000, kfreq, kfn printk 0.1, kfn ; remove semicolon on next line to hear original waveform, demonstrating the aliasing ;asig oscili 5000, kfreq, gitable outs asig, asig endin </CsInstruments> <CsScore> i1 0 5 e </CsScore> </CsoundSynthesizer>