Use text-to-speech for incoming messages

How to synthesize incoming text messages as speech.

読み終わるまでの所要時間 1 分

最終更新 8ヶ月前

After you set up message polling for the Vivox SDK, you receive events whenever the Vivox SDK receives a message.

When a text channel message is received, the
```
vx_evt_message
```
event is raised.
When a direct message is received, the
```
vx_evt_user_to_user_message
```
event is raised.

If you want to use text-to-speech (TTS) to read incoming messages, use the

vx_tts_speak

function in the message event handler. The

tts_dest_queued_local_playback

destination is an ideal choice because it ensures that the messages are queued and that they are only played locally.

The following code displays an example of how to use TTS to read incoming messages:


case evt_message:{    vx_evt_message *evt_message = (vx_evt_message *)evt;    string sessionHandle = string(evt_message->session_handle);    string username;    if (evt_message->participant_displayname != NULL)    {        username = string(evt_message->participant_displayname);    }    else    {        username = string("Anonymous");    }    string text = username + " says " + string(evt_message->message_body);    vx_tts_utterance_id utteranceID;    vx_tts_status status = vx_tts_speak(*m_ttsManagerId, m_ttsVoiceID, text.c_str(), tts_dest_queued_local_playback, &utteranceID);    break;}

注

You can use the

evt_message->is_current_user

flag to speak only to other users' messages.

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