Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
The MediaTrackSettings dictionary's volume
property is a double-precision floating-point number indicating the volume of the
MediaStreamTrack as currently configured, as a value from 0.0 (silence)
to 1.0 (maximum supported volume for the device). This lets you determine what value was
selected to comply with your specified constraints for this property's value as
described in the MediaTrackConstraints.volume property you provided when
calling either getUserMedia() or
MediaStreamTrack.applyConstraints().
If needed, you can determine whether or not this constraint is supported by checking
the value of MediaTrackSupportedConstraints.volume as returned by a call
to MediaDevices.getSupportedConstraints(). However, typically this is
unnecessary since browsers will ignore any constraints they're unfamiliar with.
Syntax
var volume = MediaTrackSettings.volume;
Value
A double-precision floating-point number indicating the volume, from 0.0 to 1.0, of the audio track as currently configured.
Example
See Example: Constraint exerciser in Capabilities, constraints, and settings for an example.
Browser compatibility
BCD tables only load in the browser