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 sin.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 instr 1 isin1 = sin(0) ;sine of 0 is 0 isin2 = sin($M_PI_2) ;sine of pi/2 (1.5707...) is 1 isin3 = sin($M_PI) ;sine of pi (3.1415...) is 0 isin4 = sin($M_PI_2 * 3) ;sine of 3/2pi (4.7123...) is -1 isin5 = sin($M_PI * 2) ;sine of 2pi (6.2831...) is 0 isin6 = sin($M_PI * 4) ;sine of 4pi is also 0 print isin1, isin2, isin3, isin4, isin5, isin6 endin instr 2 ;sin used in panning, after an example from Hans Mikelson aout vco2 0.8, 220 ; sawtooth kpan linseg p4, p3, p5 ;0 = left, 1 = right kpan = kpan*$M_PI_2 ;range 0-1 becomes 0-pi/2 kpanl = cos(kpan) kpanr = sin(kpan) outs aout*kpanl, aout*kpanr endin </CsInstruments> <CsScore> i 1 0 0 i 2 0 5 0 1 ;move left to right i 2 5 5 1 0 ;move right to left e </CsScore> </CsoundSynthesizer>