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 -m0 ;;;realtime audio out ; For Non-realtime ouput leave only the line below: ; -o vpvoc.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 ; by Menno Knevel 2021 gilen filelen "fox.wav" ; get length of impulse soundfile ; analyze sound file and output result to pvoc-ex file ires system_i 1,{{ pvanal fox.wav fox1.pvx }} ; default settings instr 1 ; untreated signal asig diskin2 "fox.wav", 1 prints "\n---***YOU NOW HEAR THE UNTREATED SOUND SAMPLE***---\n" outs asig*.8, asig*.8 endin instr 2 prints "\n---***YOU NOW HEAR THE RESULT OF THIS ANALYZED FILE:***---\n" ktime line 0, p3, gilen ; timepointer over the entire sample tablexseg 1, p3, 2 ; morph from table 1 to table 2 prints "2 tables are used as filter envelopes (tables 1 & 2)\n" asig vpvoc ktime, p4, "fox1.pvx" outs asig, asig endin </CsInstruments> <CsScore> f 1 0 512 9 .5 1 0 f 2 0 512 5 1 60 0.01 390 0.01 62 1 i1 0 2.76 ; original sample i2 5 2.76 1 ; no change so original sample is played i2 10 2 1 ; played faster i2 15 10 1 ; slowed down, same pitch & i2 15 10 1.2; higher pitch, forming a chord e </CsScore> </CsoundSynthesizer>