Sets the preferred sample rate for input and output.
- iOS 6.0+
- tvOS 9.0+
The hardware sample rate to use. The available range for hardware sample rate is device dependent. It typically ranges from 8000 through 48000 hertz.
true if a request was successfully made, or
This method requests a change to the input and output audio sample rate. To see the effect of this change, use the
You can set a preferred sample rate before or after activating the audio session.