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 ;;;RT audio out ;-iadc ;;;uncomment -iadc if RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o balance.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 instr 1 ; Generate a band-limited pulse train. asrc buzz 0.9, 440, sr/440, 1 ; Send the source signal through 2 filters. a1 reson asrc, 1000, 100 a2 reson a1, 3000, 500 ; Balance the filtered signal with the source. afin balance2 a2, asrc outs afin, afin endin </CsInstruments> <CsScore> ;sine wave. f 1 0 16384 10 1 i 1 0 2 e </CsScore> </CsoundSynthesizer>