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 doppler.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 48000 ; ksmps = 128 ; nchnls = 2 0dbfs = 1 instr 1 iattack init 0.05 irelease init 0.05 isustain init p3 p3 init iattack + isustain + irelease kdamping linseg 0.0, iattack, 1.0, isustain, 1.0, irelease, 0.0 kmic init 4 ; Position envelope, with a changing rate of change of position. ; transeg a dur ty b dur ty c dur ty d kposition transeg 4, p3*.4, 0, 120, p3*.3, -3, 50, p3*.3, 2, 4 ismoothinghz init 6 ispeedofsound init 340.29 asignal vco2 0.5, 110 aoutput doppler asignal, kposition, kmic, ispeedofsound, ismoothinghz outs aoutput*kdamping, aoutput * kdamping endin </CsInstruments> <CsScore> i1 0.0 20 e1 </CsScore> </CsoundSynthesizer>