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 known converters that support both formats and probably your best choices for this conversion.
Convert Unix audio sound file format to Compressed audio and music file, mp3 songs or ringtones.
We found 4 software records in the database related to .au to .mp3 file format conversion.
Microsoft Windows software - convert au to mp3 on Windows
Video converting software
Convert from au file format
|Yes, VIP Video Converter supports au file conversion as a source file type.||No||No||No||No||No||No||No|
|Yes, VIP Video Converter supports mp3 file conversion as a target file type.||No||No||No||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.
One of the most popular and succesfful free video conversion sofrware
An audio editing software for Windows and Mac
Apple macOS / Mac OS X software - convert au to mp3 on OS X
Universal video converting software for Mac