The baseline pitch at which the utterance will be spoken.
- iOS 7.0+
- macOS 10.14+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 3.0+
The default pitch is
1.0. Allowed values are in the range from
0.5 (for lower pitch) to
2.0 (for higher pitch).
Configuring Utterance Speech
The amount of time a speech synthesizer will wait after the utterance is spoken before handling the next queued utterance.
The amount of time a speech synthesizer will wait before actually speaking the utterance upon beginning to handle it.
The rate at which the utterance will be spoken.
The voice used to speak the utterance.
The volume used when speaking the utterance.