MediaTrackConstraints.echoCancellation

The MediaTrackConstraints dictionary's echoCancellation property is a ConstrainBoolean describing the requested or mandatory constraints placed upon the value of the echoCancellation constrainable property.

If needed, you can determine whether or not this constraint is supported by checking the value of MediaTrackSupportedConstraints.echoCancellation as returned by a call to MediaDevices.getSupportedConstraints(). However, typically this is unnecessary since browsers will simply ignore any constraints they're unfamiliar with.

Syntax

var constraintsObject = { echoCancellation: constraint };

constraintsObject.echoCancellation = constraint;

Value

If this value is a simple true or false, the user agent will attempt to obtain media with echo cancellation enabled or disabled as specified, if possible, but will not fail if this can't be done. If, instead, the value is given as an object with an exact field, that field's Boolean value indicates a required setting for the echo cancellation feature; if it can't be met, then the request will result in an error.

Example

See Example: Constraint exerciser in Capabilities, constraints, and settings for an example.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support YesEdge ? Firefox Full support 50IE No support NoOpera Full support YesSafari ? WebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support 50Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown

See also

Document Tags and Contributors

Contributors to this page: fscholz, Sheppy
Last updated by: fscholz,