Sets the preferred sample rate for audio input and output.
- iOS 6.0+
- Mac Catalyst 13.0+
- tvOS 9.0+
The hardware sample rate to use. The available range is device dependent and is typically from 8000 through 48000 hertz.
On input, a pointer to an error object. If an error occurs, the system sets the pointer to an
NSErrorobject that describes the error. If you don’t want error information, pass in
YES if a request was successfully made, otherwise
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.