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The Audio feature allows you to embed audio files and play them back using a simple Shortcode. This was added as of WordPress 3.6 and is used like this:

[audio]

You can also use build in embeds and simply put the media file on it's own line:

  My cool content

  http://my.mp3s.com/cool/songs/coolest.mp3

  More cool content

Usage

I have an old post that has an audio file in the Media Library attached to it, and I want to use the new shortcode:

[audio]

I have the URL for an MP3, from the Media Library or external, that I want to play:

[audio src="audio-source.mp3"]

I have a source URL and fallbacks for other HTML5-supported filetypes:

[audio mp3="source.mp3" ogg="source.ogg" wav="source.wav"]

Options

The following basic options are supported:

src

(string) (optional) The source of your audio file. If not included it will auto-populate with the first audio file attached to the post. You can use the following options to define specific filetypes, allowing for graceful fallbacks:

• 'mp3', 'm4a', 'ogg', 'wav', 'wma'

Default: First audio file attached to the post

loop

(string) (optional) Allows for the looping of media.

• "off" - Do not loop the media.
• "on" - Media will loop to beginning when finished and automatically continue playing.

Default: "off"

autoplay

(boolean) (optional) Causes the media to automatically play as soon as the media file is ready.

• 0 - Do not automatically play the media.
• 1 - Media will play as soon as it is ready.

Default: 0

preload

(string) (optional) Specifies if and how the audio should be loaded when the page loads. Defaults to "none".

• "none" - The audio should not be loaded when the page loads.
• "auto" - The audio should be loaded entirely when the page loads.
• "metadata" - Only metadata should be loaded when the page loads.

Default: "none"

Source File

The audio shortcode is located in wp-includes/media.php.

Related

Function wp audio shortcode

WordPress Shortcodes: [audio], [caption], [embed], [gallery], [playlist], [video]