lpf18

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 ;;;RT audio out ; For Non-realtime ouput leave only the line below: ;-o lpf18.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 with help from Iain Duncan ; sr = 44100 ; ksmps = 32 ; nchnls = 2 0dbfs = 1 instr 1 kamp init 1 ; Note that its amplitude (kamp) ranges from 0 to 1. kcps init 440 knh init 3 ifn = 1 asine buzz kamp, kcps, knh, ifn ; Generate a sine waveform. kfco line 300, p3, 3000 ; Filter the sine waveform. kres init 0.8 ; Vary the cutoff frequency (kfco) from 300 to 3,000 Hz. kdist = p4 ivol = p5 aout lpf18 asine, kfco, kres, kdist outs aout * ivol, aout * ivol endin </CsInstruments> <CsScore> f 1 0 16384 10 1 ; sine wave. ; different distortion and volumes to compensate i 1 0 4 0.2 .8 i 1 4.5 4 0.9 .7 e </CsScore> </CsoundSynthesizer>