voicePrompt
A mode that indicates that your app plays audio using text-to-speech.
Declaration
static let voicePrompt: AVAudioSession.ModeDiscussion
Setting this mode allows for different routing behaviors when your app connects to certain audio devices, such as CarPlay. An example of an app that uses this mode is a turn-by-turn navigation app that plays short prompts to the user.
Typically, apps of the same type also configure their sessions to use the duckOthers and interruptSpokenAudioAndMixWithOthers options.