MediaRecorder: audioBitrateMode property

Limited availability

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

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The audioBitrateMode read-only property of the MediaRecorder interface returns the bitrate mode used to encode audio tracks.

Value

One of the following:

constant

The MediaRecorder encodes at this constant bitrate.

variable

The MediaRecorder encodes using this variable bitrate, allowing more space to be used for complex signals and less space for less complex signals.

Specifications

Specification
MediaStream Recording
# dom-mediarecorder-audiobitratemode

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
audioBitrateMode
Experimental
Chrome – Full support
Chrome 89 (Release date: 2021-03-02)
footnote Full support
Edge – Full support
Edge 89 (Release date: 2021-03-04)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 75 (Release date: 2021-03-24)
footnote Full support
Safari – No support
Safari
footnote No support
Chrome Android – Full support
Chrome Android 89 (Release date: 2021-03-02)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 63 (Release date: 2021-04-16)
footnote Full support
Safari on iOS – No support
Safari on iOS
footnote No support
Samsung Internet – Full support
Samsung Internet 15 (Release date: 2021-08-13)
footnote Full support
WebView Android – Full support
WebView Android 89 (Release date: 2021-03-02)
footnote Full support
WebView on iOS – No support
WebView on iOS
footnote No support

Legend

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

Full support
Full support
No support
No support
Experimental. Expect behavior to change in the future.