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 fof.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 instr 1 ; Combine five formants together to create ; a transformation from an alto-"a" sound ; to an alto-"i" sound. ; Values common to all of the formants. kfund init 261.659 koct init 0 kris init 0.003 kdur init 0.02 kdec init 0.007 iolaps = 100 ifna = 1 ifnb = 2 itotdur = p3 ; First formant. k1amp = ampdb(0) k1form line 800, p3, 350 k1band line 80, p3, 50 ; Second formant. k2amp line ampdb(-4), p3, ampdb(-20) k2form line 1150, p3, 1700 k2band line 90, p3, 100 ; Third formant. k3amp line ampdb(-20), p3, ampdb(-30) k3form line 2800, p3, 2700 k3band init 120 ; Fourth formant. k4amp init ampdb(-36) k4form line 3500, p3, 3700 k4band line 130, p3, 150 ; Fifth formant. k5amp init ampdb(-60) k5form init 4950 k5band line 140, p3, 200 a1 fof k1amp, kfund, k1form, koct, k1band, kris, \ kdur, kdec, iolaps, ifna, ifnb, itotdur a2 fof k2amp, kfund, k2form, koct, k2band, kris, \ kdur, kdec, iolaps, ifna, ifnb, itotdur a3 fof k3amp, kfund, k3form, koct, k3band, kris, \ kdur, kdec, iolaps, ifna, ifnb, itotdur a4 fof k4amp, kfund, k4form, koct, k4band, kris, \ kdur, kdec, iolaps, ifna, ifnb, itotdur a5 fof k5amp, kfund, k5form, koct, k5band, kris, \ kdur, kdec, iolaps, ifna, ifnb, itotdur ; Combine all of the formants together asig sum (a1+a2+a3+a4+a5) * 13000 outs asig, asig endin </CsInstruments> <CsScore> ; sine wave f 1 0 4096 10 1 ; sigmoid wave f 2 0 1024 19 0.5 0.5 270 0.5 i 1 0 1 i 1 2 5 ; same but slower e </CsScore> </CsoundSynthesizer>