OscillatorNode: detune property

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

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

Value

An a-rate AudioParam.

Examples

The following example shows basic usage of an AudioContext to create an oscillator node. For applied examples/information, check out our Violent Theremin demo (see app.js for relevant code).

js
// create web audio api context
const audioCtx = new (window.AudioContext || window.webkitAudioContext)();

// create Oscillator node
const oscillator = audioCtx.createOscillator();

oscillator.type = "square";
oscillator.frequency.setValueAtTime(440, audioCtx.currentTime); // value in hertz
oscillator.detune.setValueAtTime(100, audioCtx.currentTime); // value in cents
oscillator.start();

Specifications

Specification
Web Audio API
# dom-oscillatornode-detune

Browser compatibility

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See also