Use text-to-speech for incoming messages

How to synthesize incoming text messages as speech.

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最后更新于 8 个月前

To use text-to-speech (TTS) to read incoming messages, use the

Speak()

function in the message event handler. We recommend that you use the

TTSDestination::QueuedLocalPlayback

destination because it ensures that messages are queued and that they only play locally.

When a text message is received in a channel, the
```
IChannelSession::EventTextMessageReceived
```
event is raised.
When a direct message is received in a channel, the
```
ILoginSession::EventDirectedTextMessageReceived
```
event is raised.

The following code is an example of how to use TTS for channel messages:


MyChannelSession->EventTextMessageReceived.AddLambda([MyLoginSession](const IChannelTextMessage &Message){    // If the text message received is not from me...    if (Message.Sender() != MyLoginSession->LoginSessionId())    {        // Check if optional display name is set.        FString DisplayName = Message.Sender().DisplayName();        if (DisplayName.IsEmpty())            { DisplayName = "Anonymous"; }        // This queues the message and lets the user know who sent it.        // NB: the colon (:) inserts a slight pause before subsequent text.        FString Text = DisplayName + " says: " + Message.Message();        MyLoginSession->TTS().Speak(Text, TTSDestination::QueuedLocalPlayback);    }});

注意

To only read text messages from other users in a channel, compare the current user’s AccountId with the IChannelTextMessage::Sender() value.

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