If needed, you can determine whether or not this constraint is supported by checking
the value of
MediaTrackSupportedConstraints.sampleRate as returned by a
MediaDevices.getSupportedConstraints(). However, typically this
is unnecessary since browsers will ignore any constraints they're unfamiliar with.
If this value is a number, the user agent will attempt to obtain media whose sample
rate is as close as possible to this number given the capabilities of the hardware and
the other constraints specified. Otherwise, the value of this
ConstrainULong will guide the user agent in its efforts to provide an
exact match to the required sample rate (if
exact is specified or both
max are provided and have the same value) or to a
See the Constraint exerciser example.
|Media Capture and Streams |
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