The muted read-only property of the MediaStreamTrack interface returns a Boolean value indicating whether or not the track is currently unable to provide media output.

To implement a way for users to mute and unmute a track, use the enabled property. When a track is disabled by setting enabled to false, it generates only empty frames (audio frames in which every sample is 0, or video frames in which every pixel is black).


const mutedFlag = track.muted


Boolean which is true if the track is currently muted, or false if the track is currently unmuted.

When possible, avoid polling muted to monitor the track's muting status. Instead, add event listeners for the mute and unmute events.


This example counts the number of tracks in an array of MediaStreamTrack objects which are currently muted.

let mutedCount = 0;

trackList.forEach((track) => {
  if (track.muted) {
    mutedCount += 1;


Specification Status Comment
Media Capture and Streams
The definition of 'muted' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
mutedChrome Full support YesEdge Full support 12Firefox Full support 59IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 59Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


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