sampleRate property is an integer indicating how many audio samples per second the
MediaStreamTrack is currently configured for. This lets you determine what value was selected to comply with your specified constraints for this property's value as described in the
MediaTrackConstraints.sampleRate property you provided when calling either
If needed, you can determine whether or not this constraint is supported by checking the value of
MediaTrackSupportedConstraints.sampleRate 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 sampleRate = MediaTrackSettings.sampleRate;
An integer value indicating how many samples each second of audio data includes. Common values include 44,100 (standard CD audio), 48,000 (standard digital audio), 96,000 (commonly used in audio mastering and post-production), and 192,000 (used for high-resolution audio in professional recording and mastering sessions). However, lower values are often used to reduce bandwidth requirements; 8,000 samples per second is adequate for comprehensible albeit imperfect human speech, and both 11,025 FPS and 22,050 FPS are often used for low-bandwidth, reduced quality sound and music.
See "Example: Constraint exerciser" in Capabilities, constraints, and settings for an example.
|Media Capture and Streams
The definition of 'sampleRate' 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)|