echoCancellation property is a Boolean value whose value indicates whether or not echo cancellation is enabled on an audio track. This lets you determine what value was selected to comply with your specified constraints for this property's value as described in the
MediaTrackConstraints.echoCancellation property you provided when calling either
Echo cancellation is a feature which attempts to prevent echo effects on a two-way audio connection by attempting to reduce or eliminate crosstalk between the user's output device and their input device. For example, it might apply a filter that negates the sound being produced on the speakers from being included in the input track generated from the microphone.
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.
var echoCancellation = MediaTrackSettings.echoCancellation;
A Boolean value which is
true if the track has echo cancellation functionality enabled or
false if echo cancellation is disabled.
See "Example: Constraint exerciser" in Capabilities, constraints, and settings for an example.
|Media Capture and Streams
The definition of 'echoCancellation' in that specification.
|Editor's Draft||Initial specification.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Basic support||(Yes)||50 (50)||No support||(Yes)||?|
|Feature||Android||Android Webview||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile||Chrome for Android|
|Basic support||?||(Yes)||50.0 (50)||No support||?||?||(Yes)|