> ## Documentation Index
> Fetch the complete documentation index at: https://docs.get2dial.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Audio file requirements

> Accepted formats and size limits for audio uploaded to the audio library, and how recordings are stored.

## Uploading to the audio library

| Requirement                           | Value                                                                            |
| ------------------------------------- | -------------------------------------------------------------------------------- |
| Accepted formats                      | WAV, MP3, OGG, G.722                                                             |
| Maximum file size                     | 50 MB                                                                            |
| Sample rate, bit depth, channel count | Not validated on upload                                                          |
| Duplicate files                       | Deduplicated automatically — uploading the same file twice doesn't create a copy |

See [Upload audio to the library](/inbound/prompts-and-audio-library).

## Call recordings

Recordings that Get2Dial makes of your calls (not uploads) are stored as WAV by default.

## Related

<CardGroup cols={2}>
  <Card title="Upload audio to the library" href="/inbound/prompts-and-audio-library" />

  <Card title="Limits and quotas" href="/reference/limits-and-quotas" />
</CardGroup>