AudioParam: cancelScheduledValues() method

Syntax

js

cancelScheduledValues(startTime)

Parameters

startTime: A double representing the time (in seconds) after the AudioContext was first created after which all scheduled changes will be cancelled.

Return value

A reference to this AudioParam object. In some older implementations this method returns undefined.

Examples

js

const gainNode = audioCtx.createGain();
gainNode.gain.setValueCurveAtTime(waveArray, audioCtx.currentTime, 2); // 'gain' is the AudioParam
gainNode.gain.cancelScheduledValues(audioCtx.currentTime);

Specifications

Specification
Web Audio API # dom-audioparam-cancelscheduledvalues

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`cancelScheduledValues`	Chrome – Partial support Chrome 14 – 81 (Release date: 2011-09-16) footnote Partial support footnote Before Chrome 83, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. Chrome – Full support Chrome 83 (Release date: 2020-05-19) footnote Full support	Edge – Partial support Edge 12 – 81 (Release date: 2015-07-29) footnote Partial support footnote Before Edge 83, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. Edge – Full support Edge 83 (Release date: 2020-05-21) footnote Full support	Firefox – Partial support Firefox 25 (Release date: 2013-10-29) footnote Partial support footnote Does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 1752775.	Opera – Partial support Opera 15 – 68 (Release date: 2013-07-02) footnote Partial support footnote Before Opera 69, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. Opera – Full support Opera 69 (Release date: 2020-06-24) footnote Full support	Safari – Partial support Safari 6 – 14 (Release date: 2012-07-25) footnote Partial support footnote Before Safari 14.1, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 216132. Safari – Full support Safari 14.1 (Release date: 2021-04-26) footnote Full support	Chrome Android – Partial support Chrome Android 18 – 81 (Release date: 2012-06-27) footnote Partial support footnote Before Chrome Android 83, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. Chrome Android – Full support Chrome Android 83 (Release date: 2020-05-19) footnote Full support	Firefox for Android – Partial support Firefox for Android 25 (Release date: 2013-10-29) footnote Partial support footnote Does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 1752775.	Opera Android – Partial support Opera Android 14 – 58 (Release date: 2013-05-21) footnote Partial support footnote Before Opera Android 59, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. Opera Android – Full support Opera Android 59 (Release date: 2020-06-30) footnote Full support	Safari on iOS – Partial support Safari on iOS 6 – 14 (Release date: 2012-09-10) footnote Partial support footnote Before Safari on iOS 14.1, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 216132. Safari on iOS – Full support Safari on iOS 14.5 (Release date: 2021-04-26) footnote Full support	Samsung Internet – Partial support Samsung Internet 1 – 12.1 (Release date: 2013-04-27) footnote Partial support footnote Before Samsung Internet 13.0, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. Samsung Internet – Full support Samsung Internet 13 (Release date: 2020-12-02) footnote Full support	WebView Android – Partial support WebView Android 4.4 – 81 (Release date: 2013-12-09) footnote Partial support footnote Before WebView Android 83, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 40123334. WebView Android – Full support WebView Android 83 (Release date: 2020-05-19) footnote Full support	WebView on iOS – Partial support WebView on iOS 6 – 14 (Release date: 2012-09-10) footnote Partial support footnote Before WebView on iOS 14.1, `cancelScheduledValues()` does not cancel in-progress curve events created by `setValueCurveAtTime()`. See bug 216132. WebView on iOS – Full support WebView on iOS 14.5 (Release date: 2021-04-26) footnote Full support

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Full support: Full support
Partial support: Partial support
: Has more compatibility info.

Syntax

Parameters

Return value

Examples

Specifications

Browser compatibility

Legend

See also