User guide

Handling Interruptions From Siri 27

The Interruption Life Cycle 28

OpenAL and Audio Interruptions 29

Using the AVAudioPlayer Class to Handle Audio Interruptions 29

Responding to a Media Server Reset 30

Providing Guidelines to the User 30

Optimizing Your App for Device Hardware 32

Choosing Preferred Audio Hardware Values 32

Setting Preferred Hardware Values 33

Querying Hardware Characteristics 34

Specifying Preferred Hardware I/O Buffer Duration 35

Obtaining and Using the Hardware Sample Rate 35

Running Your App in the Simulator 36

Responding to Route Changes 37

Varieties of Audio Hardware Route Change 37

Responding to Audio Hardware Route Changes 38

Fine-Tuning an Audio Session for Players 40

Working with Music Players 40

Working with Movie Players 41

Using the Media Player Framework Exclusively 42

Audio Guidelines By App Type 43

Audio Guidelines for Game Apps 43

Audio Guidelines for User-Controlled Playback and Recording Apps 43

Audio Guidelines for VoIP and Chat Apps 44

Audio Guidelines for Metering Apps 45

Audio Guidelines for Browser-like Apps That Sometimes Play Audio 45

Audio Guidelines for Navigation and Workout Apps 46

Audio Guidelines for Cooperative Music Apps 46

Audio Session Categories and Modes 47

Document Revision History 50

Swift 5

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