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 ;;;realtime audio out ; For Non-realtime ouput leave only the line below: ; -o randomh.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; by Kevin Conder & Menno Knevel, adapted for new args by Francois Pinot. ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 seed 0 instr 1 kmin init 220; Choose a random frequency between 220 and 440 Hz. kmax init 440 kcps init 10; Generate new random numbers at 10 Hz. imode = p4 ifstval = p5 printf_i "\nMode: %d\n", 1, imode k1 randomh kmin, kmax, kcps, imode, ifstval printk2 k1 asig poscil 1, k1 outs asig, asig endin </CsInstruments> <CsScore> ; each time with a different mode. i 1 0 1 i 1 2 1 2 330 i 1 4 1 3 e </CsScore> </CsoundSynthesizer>