Vivox Unreal SDK

Vivox Unreal SDK

Text-to-Speech events

Learn about text-to-speech event callbacks.

Read time 1 minute

Last updated 8 months ago

The SDK can sometimes raise the following

ITextToSpeech

text-to-speech (TTS) events.

Note

You can bind to these events by using

ILoginSession::TTS()

.

```
EventPlaybackStarted
```
- Raised when a TTS message has finished preparing for playback and is starting to play.
- ```
Message
```
  - The
```
ITTSMessage
```
  that corresponds to this speech.
- ```
MessageDuration
```
  - The duration of the synthesized voice clip in seconds.
- ```
NumConsumers
```
  - The number of active sessions (for remote playback destinations) or local players (for local playback destinations), or both, that the TTS message was injected into.
```
EventPlaybackCompleted
```
- Raised when a TTS message has finished playback.
- ```
Message
```
  - The
```
ITTSMessage
```
  that corresponds to this speech.
- ```
NumConsumers
```
  - The number of active sessions (for remote playback destinations) or local players (for local playback destinations), or both, that the TTS message was injected into.
```
EventPlaybackFailed
```
- Raised when playback of a TTS message has failed.
- ```
Message
```
  - The
```
ITTSMessage
```
  that corresponds to this speech.
- ```
Status
```
  - The error code of the failure.