latency property is a double-precision floating-point number indicating the estimated latency (specified in seconds) of the
MediaStreamTrack as currently configured. This lets you determine what value was selected to comply with your specified constraints for this property's value as described in the
MediaTrackConstraints.latency property you provided when calling either
This is, of course, an approximation, since latency can vary for many reasons including CPU, transmission, and storage overhead.
If needed, you can determine whether or not this constraint is supported by checking the value of
MediaTrackSupportedConstraints.latency 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 latency = MediaTrackSettings.latency;
A double-precision floating-point number indicating the estimated latency, in seconds, of the audio track as currently configured.
See "Example: Constraint exerciser" in Capabilities, constraints, and settings for an example.
|Media Capture and Streams
The definition of 'latency' in that specification.
|Editor's Draft||Initial specification.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari|
|Basic support||(Yes)||No support||No support||(Yes)||?|
|Feature||Android||Android Webview||Firefox Mobile (Gecko)||IE Mobile||Opera Mobile||Safari Mobile||Chrome for Android|
|Basic support||?||(Yes)||No support||No support||?||?||(Yes)|