AudioFilter

Filter effect, muffle sounds underwater or behind a wall

Constructor

new AudioFilter(type, frequency, q, mix)audioEffects.js:123

Create a filter effect

type BiquadFilterType optional, default lowpass: lowpass, highpass, bandpass, notch, etc.
frequency number optional, default 1000: Cutoff or center frequency in Hz
q number optional, default 1: Resonance at the cutoff, higher is sharper
mix number optional, default 1: Wet/dry balance, 0 is fully dry and 1 is fully wet

const muffle = new AudioFilter('lowpass', 400);
setAudioMasterEffect(muffle);
muffle.setFrequency(20000, .5); // sweep back to clear

node : BiquadFilterNodeaudioEffects.js:138

The filter node

setFrequency(frequency, fadeTime)audioEffects.js:148

Set the cutoff or center frequency

Set the resonance at the cutoff