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Vivox Unity SDK

Vivox Unity SDK

Vivox
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Vivox Unity SDK
  • Overview
  • Get started
  • Release notes
  • Developer guide
    • Set up your project
    • Create voice and text channels
    • Messaging
    • Player management
    • Device management
    • Audio management
    • Mobile development
    • Text-to-speech
      • Text-to-speech voice options
      • Text-to-speech destinations
      • Inject a text-to-speech message
      • Queue a text-to-speech message
      • Cancel a text-to-speech message
    • Speech-to-text
    • Real-time recording
    • Server-side-recording
    • Troubleshooting
  • Tutorials
  • Reference
  1. Vivox Unity SDK documentation
  3. Vivox Unity Developer Guide
  5. Speech-to-text audio transcription

Queue a text-to-speech message

Queue a text-to-speech message for audio output.
Read time 1 minute
Last updated 8 months ago
Some destinations offer a built-in queuing system. When a new message is injected and there is an ongoing message playing, then the new message is put into a queue. After the ongoing message finishes playing, the next message in the queue automatically starts to play.
// Start playing speech as soon as it is synthesized.VivoxService.Instance.TextToSpeechSendMessage("1st Message.", TextToSpeechMessageType.QueuedLocalPlayback);// After the first message finishes playback, this message starts.VivoxService.Instance.TextToSpeechSendMessage("2nd Message.", TextToSpeechMessageType.QueuedLocalPlayback);
A queue is shared between 
TextToSpeechMessageType.QueuedRemoteTransmission
and 
TextToSpeechMessageType.QueuedRemoteTransmissionWithLocalPlayback
. The destination 
TextToSpeechMessageType.QueuedLocalPlayback
has its own queue.
A destination queue can hold up to 10 enqueued messages in addition to the message that is actively playing. If a message is added when a destination queue is full, the Vivox SDK discards the message and raises an InvalidOperationException (
VxErrorTTSDestinationQueueIsFull
). In this case, no text-to-speech related events are raised.
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