AVAudioSession.IOType.notSpecified

Declaration

case notSpecified

Discussion

Use this I/O type if your app doesn’t use AVCaptureSession, or doesn’t have any specific requirements for aggregating input and output audio in the same realtime I/O callback. If your app doesn’t use a capture session, it gets aggregated I/O when using the playAndRecord category.

If your app uses a capture session, specifying this value allows the session to start recording without causing glitches in the already running output audio. It also allows the system to use power-saving optimizations.

See Also

I/O Types

• AVAudioSession.IOType.aggregated