The detune
property of the AudioBufferSourceNode
interface is a k-rate AudioParam
representing detuning of oscillation in cents.
For example, values of +100 and -100 detune the source up or down by one semitone, while +1200 and -1200 detune it up or down by one octave.
var source = audioCtx.createBufferSource(); source.detune.value = 100; // value in cents
Note: Though the AudioParam
returned is read-only, the value it represents is not.
A k-rate AudioParam
whose value indicates the detuning of oscillation in cents.
const audioCtx = new AudioContext(); const channelCount = 2; const frameCount = audioCtx.sampleRate * 2.0; // 2 seconds const myArrayBuffer = audioCtx.createBuffer(channelCount, frameCount, audioCtx.sampleRate); for (let channel = 0; channel < channelCount; channel++) { const nowBuffering = myArrayBuffer.getChannelData(channel); for (let i = 0; i < frameCount; i++) { nowBuffering[i] = Math.random() * 2 - 1; } } const source = audioCtx.createBufferSource(); source.buffer = myArrayBuffer; source.connect(audioCtx.destination); source.detune.value = 100; // value in cents source.start();
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'detune' in that specification. | Working Draft |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 44 | 13 | 40 | No | 31 | No |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 44 | 44 | Yes | 40 | 31 | ? | Yes |
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/AudioBufferSourceNode/detune