This is an event broadcasted by Tavus.
An utterance contains the content of what was spoken and an indication of who spoke it (i.e. the user or replica). Each utterance event includes all of the words spoken by the user or replica measured from when the person started speaking to when they finished speaking. This could include multiple sentences or phrases.
Utterance events can be used to keep track of what the user or the replica has said.
To track how long an utterance lasts, please refer to duration in “User Started/Stopped Speaking” and “Replica Started/Stopped Speaking” events.
When the speaker is the user and the persona uses Raven-1, properties may include user_audio_analysis (tone/delivery) and/or user_visual_analysis (appearance and demeanor). These fields are only present when there is relevant analysis for that utterance.
Message type indicates what product this event will be used for. In this case, the message_type will be conversation
"conversation"
This is the type of event that is being sent back. This field will be present on all events and can be used to distinguish between different event types.
"conversation.utterance"
The unique identifier for the conversation.
"c123456"
This is a unique identifier for a given utterance. In this case, it will be the utterance the replica is speaking.
"83294d9f-8306-491b-a284-791f56c8383f"
This object contains the speech property (the contents of the utterance). When the speaker is the user and the persona uses Raven-1, it may also include user_audio_analysis and/or user_visual_analysis when relevant analysis is available.