Output Audio Unit Services

Overview

This document describes Output Audio Unit Services, a C interface in the Audio Unit framework. You use this interface to start and stop I/O audio units (often referred to as output audio units).

Topics

Output Audio Unit Services Functions

func AudioOutputUnitStart(AudioUnit) -> OSStatus

Starts an I/O audio unit, which in turn starts the audio unit processing graph that it is connected to.

func AudioOutputUnitStop(AudioUnit) -> OSStatus

Stops an I/O audio unit, which in turn stops the audio unit processing graph that it is connected to.

Constants

I/O Audio Unit Function Selectors

Audio unit component selectors, specific to I/O audio units, that correspond to functions in the audio unit API.