AU to MP3 Converter

Convert your au files to mp3 online & free

Drop files here. 100 MB maximum file size or Sign Up
to

Settings

Select the bitrate range for the Variable Bitrate (VBR) MP3 file. Note that some legacy audio players may display incorrect audio file duration if VBR mode is used, in this case use CBR mode instead.
Set the constant bitrate for the audio track. Leaving this setting to "Auto" will automatically choose a bitrate to achieve a decent quality based on the source audio.
Set the number of audio channels. This setting is most useful when downmixing channels (e.g., from 5.1 to stereo).
Convert to AU

au

Sun Microsystems AU files

AU is a file extension for a sound file format belonging to Sun, NeXT and DEC and used in UNIX. The AU file format is also known as the Sparc-audio or u-law fomat. AU files contain three parts: the audio data and text for a header (containing 24 bytes) and an annotation block.
MP3 Converter

mp3

MP3 Audio Format

Is the most common format for storing audio. Almost any player on any platform can open mp3 files. The audio is compressed with loss of quality, but the loss is negligible for the typical user, and the file size is usually less than that of the original files.

How to convert AU to MP3

Step 1

Upload au-file(s)

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Step 2

Choose "to mp3"

Choose mp3 or any other format you need as a result (more than 200 formats supported)

Step 3

Download your mp3

Let the file convert and you can download your mp3 file right afterwards

AU to MP3 Quality Rating

4.7 (472 votes)
You need to convert and download at least 1 file to provide feedback!