AVSpeechSynthesizerMBS.Handle as Integer

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Speech	MBS AVFoundation Plugin	24.1	✅ Yes	❌ No	❌ No	✅ Yes	All

The internal object reference.

(Read and Write property)

AVSpeechSynthesizerMBS.isPaused as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Speech	MBS AVFoundation Plugin	24.1	✅ Yes	❌ No	❌ No	✅ Yes	All

A Boolean value that indicates whether a speech synthesizer is in a paused state.

If true, the speech synthesizer is in a paused state after beginning to speak an utterance; otherwise, false.
(Read only property)

AVSpeechSynthesizerMBS.isSpeaking as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Speech	MBS AVFoundation Plugin	24.1	✅ Yes	❌ No	❌ No	✅ Yes	All

A Boolean value that indicates whether the speech synthesizer is speaking or is in a paused state and has utterances to speak.

If true, the synthesizer is speaking or is in a paused state with utterances in its queue. If false, the synthesizer isn’t speaking and it doesn’t have any utterances in its queue.
(Read only property)

AVSpeechSynthesizerMBS.mixToTelephonyUplink as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Speech	MBS AVFoundation Plugin	24.1	✅ Yes	❌ No	❌ No	✅ Yes	iOS only

A Boolean value that specifies whether to send synthesized speech to an active call.

This property has no effect when there isn’t an active call.
(Read and Write property)

AVSpeechSynthesizerMBS.usesApplicationAudioSession as Boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
property	Speech	MBS AVFoundation Plugin	24.1	✅ Yes	❌ No	❌ No	✅ Yes	iOS only

A Boolean value that specifies whether the app manages the audio session.

If you set this value to false, the system creates a separate audio session to automatically manage speech, interruptions, and mixing and ducking the speech with other audio sources.
(Read and Write property)