1. Web
  2. Web APIs
  3. AudioEncoder
  4. encode()

AudioEncoder: encode() method

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Note: This feature is available in Dedicated Web Workers.

The encode() method of the AudioEncoder interface enqueues a control message to encode a given AudioData object.

Syntax

js
encode(data)

Parameters

data

An AudioData object.

Return value

None (undefined).

Exceptions

InvalidStateError DOMException

Thrown if the state is not "configured".

TypeError

Thrown if the AudioData object has been transferred.

Examples

In the following example encode is passed an AudioData object.

js
encoder.encode(data);

Specifications

Specification
WebCodecs
# dom-audioencoder-encode

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
encode
Chrome – Full support
Chrome 94 (Release date: 2021-09-21)
footnote Full support
Edge – Full support
Edge 94 (Release date: 2021-09-24)
footnote Full support
Firefox – Full support
Firefox 130 (Release date: 2024-09-03)
footnote Full support
Opera – Full support
Opera 80 (Release date: 2021-10-05)
footnote Full support
Safari – Full support
Safari 26 (Release date: 2025-09-15)
footnote Full support
Chrome Android – Full support
Chrome Android 94 (Release date: 2021-09-21)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 66 (Release date: 2021-12-15)
footnote Full support
Safari on iOS – Full support
Safari on iOS 26 (Release date: 2025-09-15)
footnote Full support
Samsung Internet – Full support
Samsung Internet 17 (Release date: 2022-05-04)
footnote Full support
WebView Android – Full support
WebView Android 94 (Release date: 2021-09-21)
footnote Full support
WebView on iOS – Full support
WebView on iOS 26 (Release date: 2025-09-15)
footnote Full support

Tip: you can click/tap on a cell for more information.

Full support
No support

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