Tells the delegate when the synthesizer has canceled speaking an utterance.
- iOS 7.0+
- macOS 10.14+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The synthesizer speaking the utterance that this message applies to.
The utterance during which speech was canceled.
This message is sent only if speech is stopped (using the
stop method) while an utterance is being spoken. It is not sent if the synthesizer is currently in a delay between utterances when speech stops. This message is sent only for the utterance currently being spoken, not for utterances yet to be handled.