Both au. and .mp3 are audio files, so it is likely at least some audio converter can convert one to another. Listed below are some of the converters that support both formats and are probably your best choices for this type of au to mp3 audio conversion.
Home > Search converters: au to mp3
Conversion of au file format to mp3 file format beta
Search for au to mp3 converter or software able to handle these file types.
Convert Unix audio sound file format to Compressed audio and music file, mp3 songs or ringtones.
We have found 5 software records in our database eligible for .au to .mp3 file format conversion.
Microsoft Windows software 
- convert au to mp3 on Windows
WavePad
An audio editing software for Windows and Mac
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from au file | No | Yes | No | au editor | No | No | No | No |
to mp3 file | No | Yes | No | mp3 editor | No | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned au to mp3. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
VIP Video Converter
Video converting software
Freemake Video Converter
One of the most popular and succesfful free video conversion sofrware
Apple macOS / Mac OS X software 
- convert au to mp3 on OS X
Pavtube HD Video Converter for Mac
Universal video converting software for Mac
Tiny Audio Converter
Audio converter for Mac
Additional links: Open au file, Open mp3 file
AU
An au file extension is associated with the Unix audio sound file format developed for Unix and Unix-like operating system to store audio data and sounds.
MP3
The mp3 file extension is traditionally used for one of the most common types of compressed audio files, MP3s, which you can playback using almost any media player.
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