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.
; Select audio/midi flags here according to platform ; Audio out Audio in No messages -odac -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o ihold.wav -W ;;; for file output any platform ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; Initialize the global variables. ; sr = 44100 ; kr = 4410 ; ksmps = 10 ; nchnls = 1 ; Instrument #1. instr 1 ; A simple oscillator with its note held indefinitely. a1 oscil 10000, 440, 1 ihold ; If p4 equals 0, turn the note off. if (p4 == 0) kgoto offnow kgoto playit offnow: ; Turn the note off now. turnoff playit: ; Play the note. out a1 endin ; Table #1: an ordinary sine wave. f 1 0 32768 10 1 ; p4 = turn the note off (if it is equal to 0). ; Start playing Instrument #1. i 1 0 1 1 ; Turn Instrument #1 off after 3 seconds. i 1 3 1 0 e