BiquadFilterNode: detune property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since April 2021.

The detune property of the BiquadFilterNode interface is an a-rate AudioParam representing detuning of the frequency in cents.

Value

An a-rate AudioParam.

Note: Though the AudioParam returned is read-only, the value it represents is not.

Examples

The following example shows basic usage of an AudioContext to create a Biquad filter node. For more complete applied examples/information, check out our Voice-change-O-matic demo (see app.js lines 108–193 for relevant code).

js
const audioCtx = new AudioContext();

//set up the different audio nodes we will use for the app
const analyser = audioCtx.createAnalyser();
const distortion = audioCtx.createWaveShaper();
const gainNode = audioCtx.createGain();
const biquadFilter = audioCtx.createBiquadFilter();
const convolver = audioCtx.createConvolver();

// connect the nodes together

source = audioCtx.createMediaStreamSource(stream);
source.connect(analyser);
analyser.connect(distortion);
distortion.connect(biquadFilter);
biquadFilter.connect(convolver);
convolver.connect(gainNode);
gainNode.connect(audioCtx.destination);

// Manipulate the Biquad filter

biquadFilter.type = "lowshelf";
biquadFilter.frequency.value = 1000;
biquadFilter.gain.value = 25;
biquadFilter.detune.value = 100;

Specifications

Specification
Web Audio API
# dom-biquadfilternode-detune

Browser compatibility

BCD tables only load in the browser

See also