speechSynthesizer(_:didEncounterSyncMessage:)
Sent to the delegate when a speech synthesizer encounters a synchronization error.
Declaration
@MainActor optional func speechSynthesizer(_ sender: NSSpeechSynthesizer, didEncounterSyncMessage message: String)Parameters
- sender:
Speech synthesizer informing its delegate of an error.
- message:
Error message.
Discussion
The synthesizer calls your synchronization delegate method whenever it encounters a synchronization command embedded in a string. You might use the synchronization delegate method to provide a callback not ordinarily provided.
For example, you might insert synchronization commands at the end of every sentence in a string, or you might enter synchronization commands after every numeric value in the text.
However, to synchronize your application with phonemes or words, it makes more sense to use the built-in phoneme and word delegate methods: speechSynthesizer(_:willSpeakPhoneme:) and speechSynthesizer(_:willSpeakWord:of:).