Global Variable

AVAudioSessionCategoryMultiRoute

The category for routing distinct streams of audio data to different output devices at the same time.

Declaration

const AVAudioSessionCategory AVAudioSessionCategoryMultiRoute;

Discussion

This category can be used for input, output, or both. For example, use this category to route audio to both a USB device and a set of headphones. Use of this category requires a more detailed knowledge of, and interaction with, the capabilities of the available audio routes.

See Also

Audio Session Categories

AVAudioSessionCategoryAmbient

The category for an app in which sound playback is nonprimary—that is, your app also works with the sound turned off.

AVAudioSessionCategoryPlayAndRecord

The category for recording (input) and playback (output) of audio, such as for a Voice over Internet Protocol (VoIP) app.

AVAudioSessionCategoryPlayback

The category for playing recorded music or other sounds that are central to the successful use of your app.

AVAudioSessionCategoryRecord

The category for recording audio; this category silences playback audio.

AVAudioSessionCategorySoloAmbient

The default audio session category.

AVAudioSessionCategoryAudioProcessing

The category for using an audio hardware codec or signal processor while not playing or recording audio.

Deprecated