# audio_chunk message

Audio transcribed: a client may drop it from its resend buffer
(`receive_acknowledgments`).

## Fields

- `session_id` (string, required): Identifier of the session.
- `created_at` (string, required): When the message was sent (ISO 8601, UTC).
- `type` ("audio_chunk", required)
- `acknowledged` (boolean, required)
- `error` (any, default: `null`)
- `data` (object, required)
  - `byte_range` (array of integer, required, at least 2 item(s)): First and last byte (excluded) of the acknowledged audio, from the start of the session.
  - `time_range` (array of integer, required, at least 2 item(s)): The same range in milliseconds.

## Example

```json
{
  "session_id": "string",
  "created_at": "string",
  "type": "audio_chunk",
  "acknowledged": false,
  "error": null,
  "data": {
    "byte_range": [
      0
    ],
    "time_range": [
      0
    ]
  }
}
```