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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The audioBitsPerSecond read-only property of the MediaRecorder interface returns the audio encoding bit rate in use. This may differ from the bit rate specified in the constructor (if it was provided).


var audioBitsPerSecond = MediaRecorder.audiBitsPerSecond


A Number (unsigned long).


Specification Status Comment
MediaStream Recording
The definition of 'audioBitsPerSecond' in that specification.
Working Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 49.0 ? ? 36 ?
Feature Android Android Webview Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 49.0 ? ? ? 36 ? 49.0

Document Tags and Contributors

 Contributors to this page: bunnybooboo, jpmedley
 Last updated by: bunnybooboo,