## Add audio tracks to a video

`stream.audio_tracks.copy(stridentifier, AudioTrackCopyParams**kwargs)  -> Audio`

**post** `/accounts/{account_id}/stream/{identifier}/audio/copy`

Adds an additional audio track to a video using the provided audio track URL.

### Parameters

- `account_id: str`

  The account identifier tag.

- `identifier: str`

  A Cloudflare-generated unique identifier for a media item.

- `label: str`

  A string to uniquely identify the track amongst other audio track labels for the specified video.

- `url: Optional[str]`

  An audio track URL. The server must be publicly routable and support `HTTP HEAD` requests and `HTTP GET` range requests. The server should respond to `HTTP HEAD` requests with a `content-range` header that includes the size of the file.

### Returns

- `class Audio: …`

  - `default: Optional[bool]`

    Denotes whether the audio track will be played by default in a player.

  - `label: Optional[str]`

    A string to uniquely identify the track amongst other audio track labels for the specified video.

  - `status: Optional[Literal["queued", "ready", "error"]]`

    Specifies the processing status of the video.

    - `"queued"`

    - `"ready"`

    - `"error"`

  - `uid: Optional[str]`

    A Cloudflare-generated unique identifier for a media item.

### Example

```python
import os
from cloudflare import Cloudflare

client = Cloudflare(
    api_token=os.environ.get("CLOUDFLARE_API_TOKEN"),  # This is the default and can be omitted
)
audio = client.stream.audio_tracks.copy(
    identifier="ea95132c15732412d22c1476fa83f27a",
    account_id="023e105f4ecef8ad9ca31a8372d0c353",
    label="director commentary",
)
print(audio.uid)
```

#### Response

```json
{
  "errors": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "messages": [
    {
      "code": 1000,
      "message": "message",
      "documentation_url": "documentation_url",
      "source": {
        "pointer": "pointer"
      }
    }
  ],
  "success": true,
  "result": {
    "default": true,
    "label": "director commentary",
    "status": "queued",
    "uid": "ea95132c15732412d22c1476fa83f27a"
  }
}
```