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 ; Audio out Audio in -odac ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o pvscale.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 ;; example written by joachim heintz 2009 instr 1 ifftsize = 1024 ioverlap = ifftsize / 4 iwinsize = ifftsize iwinshape = 1; von-Hann window Sfile = "fox.wav" ain soundin Sfile fftin pvsanal ain, ifftsize, ioverlap, iwinsize, iwinshape; fft-analysis of the audio-signal fftblur pvscale fftin, p4, p5, p6; scale aout pvsynth fftblur; resynthesis outs aout*.5, aout*.5 endin </CsInstruments> <CsScore> i 1 0 3 1 0 1 ; original sound i 1 3 3 1.5 0 2 ; fifth higher without ... i 1 6 3 1.5 1 2 ; ... and with different ... i 1 9 3 1.5 2 5 ; ... kinds of formant preservation e </CsScore> </CsoundSynthesizer>