Global Variable

AVAudioSessionCategoryPlayback

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

Declaration

const AVAudioSessionCategory AVAudioSessionCategoryPlayback;

Discussion

When using this category, your app audio continues with the Silent switch set to silent or when the screen locks. (The switch is called the Ring/Silent switch on iPhone.) To continue playing audio when your app transitions to the background (for example, when the screen locks), add the audio value to the UIBackgroundModes key in your information property list file.

By default, using this category implies that your app’s audio is nonmixable—activating your session will interrupt any other audio sessions which are also nonmixable. To allow mixing for this category, use the AVAudioSessionCategoryOptionMixWithOthers option.

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.

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