Title: wp_audio_extensions
Published: April 25, 2014
Last modified: May 20, 2026

---

# apply_filters( ‘wp_audio_extensions’, string[] $extensions )

## In this article

 * [Parameters](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#wp--skip-link--target)

Filters the list of supported audio formats.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#parameters)󠁿

 `$extensions`string[]

An array of supported audio formats. Defaults are `'mp3'`, `'ogg'`, `'flac'`, `'
m4a'`, `'wav'`.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#source)󠁿

    ```php
    return apply_filters( 'wp_audio_extensions', array( 'mp3', 'ogg', 'flac', 'm4a', 'wav' ) );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/media.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/media.php#L3333)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.0/src/wp-includes/media.php#L3333-L3333)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#related)󠁿

| Used by | Description | 
| [wp_get_audio_extensions()](https://developer.wordpress.org/reference/functions/wp_get_audio_extensions/)`wp-includes/media.php` |

Returns a filtered list of supported audio formats.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/wp_audio_extensions/?output_format=md#changelog)󠁿

| Version | Description | 
| [3.6.0](https://developer.wordpress.org/reference/since/3.6.0/) | Introduced. |

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