zamod

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 No messages -odac -iadc -d ;;;RT audio I/O ; For Non-realtime ouput leave only the line below: ; -o zamod.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> ; 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 ; Initialize the ZAK space. ; Create 2 a-rate variables and 2 k-rate variables. zakinit 2, 2 ; Instrument #1 -- a simple waveform. instr 1 ; Vary an a-rate signal linearly from 20,000 to 0. asig line 20000, p3, 0 ; Send the signal to za variable #1. zaw asig, 1 endin ; Instrument #2 -- generates audio output. instr 2 ; Generate a simple sine wave. asin oscil 1, 440, 1 ; Modify the sine wave, multiply its amplitude by ; za variable #1. a1 zamod asin, -1 ; Generate the audio output. out a1 ; Clear the za variables, prepare them for ; another pass. zacl 0, 2 endin </CsInstruments> <CsScore> ; Table #1, a sine wave. f 1 0 16384 10 1 ; Play Instrument #1 for 2 seconds. i 1 0 2 ; Play Instrument #2 for 2 seconds. i 2 0 2 e </CsScore> </CsoundSynthesizer>