Global Variable

AVAudioSessionCategoryAudioProcessing

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

Declaration

const AVAudioSessionCategory AVAudioSessionCategoryAudioProcessing;

Discussion

This category disables playback (audio output) and disables recording (audio input). Use this category, for example, when performing offline audio format conversion.

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.

AVAudioSessionCategoryMultiRoute

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

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.