realtime.conversation.item.input_audio_transcription.completed

User speech transcription completed event

Triggered when the user’s speech has been fully transcribed. Handle this event to display the user message in your chat interface and save it to conversation history.

Event Properties

type · string

Event type. Always "realtime.conversation.item.input_audio_transcription.completed" for this event.

data · object

Event data object containing transcription information.

data.content · string

The complete transcribed text of user speech.

Example: "Hello, how are you today?"

data.transcript · string

Alternative field name for the transcribed text. May be present for compatibility.

Example: "Hello, how are you today?"

Example

{
  "type": "realtime.conversation.item.input_audio_transcription.completed",
  "data": {
    "content": "Hello, how are you today?"
  }
}

Usage Example

const NavTalkMessageType = Object.freeze({
    REALTIME_CONVERSATION_ITEM_COMPLETED: "realtime.conversation.item.input_audio_transcription.completed",
    // ... other event types
});

async function handleReceivedMessage(data) {
    const nav_data = data.data;
    
    switch (data.type) {
        case NavTalkMessageType.REALTIME_CONVERSATION_ITEM_COMPLETED:
            const transcript = nav_data.content;
            console.log("Received transcription: " + transcript);
            
            // Display user message
            displayUserMessage(transcript);
            
            // Save to history
            await appendRealtimeChatHistory("user", transcript);
            break;
    }
}