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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 audioLevel read-only property of the RTCRtpContributingSource interface indicates the audio level contained in the last RTP packet played from this source. audioLevel will be the level value defined in [RFC6465] if the RFC 6465 header extension is present, and otherwise null.


var byte = RTCRtpContributingSource.audioLevel


A signed integer in the range [-128, 127].


Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'audioLevel' in that specification.
Working Draft Initial definition.

Browser Compatibility

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

Document Tags and Contributors

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