Generally speaking any audio format can be converted to other audio format, you just need to find a proper software for the conversion. So it should be pretty simple to convert common .mp3 audio to .au files common on Unix. For example the popular Freemake converter should help you with this and you can download it for free.
Home > Search converters: mp3 to au
Conversion of mp3 file format to au file format beta
Search for mp3 to au converter or software able to handle these file types.
Found 2 different conversion types using the same filename extensions.
Conversion mp3 to au type 1:
Convert from Compressed audio and music file, mp3 songs or ringtones to Unix audio sound file format.
Microsoft Windows software 
- convert mp3 to au on Windows
Freemake Video Converter
A freeware video converter, Freemake Video Converter is very simple to use and it is recommended for beginners.
Freemake supports about 200 video and audio formats. Freemake also supports Blu-ray disc burning. It is helpful to download flash video from the websites and upload video on YouTube video service.
File extension | File type (from-> to) | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|---|
Convert from mp3 file | Compressed audio and music file, mp3 songs or ringtones | Yes, Freemake Video Converter supports mp3 file conversion as a source file type. | No | No | No | No | No | No | No |
to au file | Unix audio sound file format | Yes, Freemake Video Converter supports au 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 mp3 to au. 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
A video converting software for Microsoft Windows that convert video files to various key video formats (AVI, MP4, VCD, SVCD (PAL/NTSC), DiVX, WMV, FLV, DVD, etc.) and plenty of audio-only file formats as well (MP3, WMA, OGG, WAV, AAC, AC3, MP2, AIFF, FLAC, AU, AMR, RA, etc.).
You can also use VIP Video Converter to convert your video files specially for specific multimedia devices, such as iPod, Mobile & Smart Phones, Game Consoles (PS3, Xbox etc.), PSP, Wii, iPad & more.
WavePad
A popular audio editing software, WavePad is a full-featured professional audio and music editor for Windows and Mac. It lets you record and edit music, voice and other audio recordings.
Apple macOS / Mac OS X software 
- convert mp3 to au on OS X
Tiny Audio Converter
Software that is capable of convert audio files from one kind of format to many possibilities.
Supported formats: 3gp, 3g2, aac, adts, ac3, aifc, aiff, aif, amr, m4a, m4r, m4b, caf, mp1, mpeg, mpa, mp2, mp3, mp4, snd, au, sd2, wav.
Conversion mp3 to au type 2:
Convert from Compressed audio and music file, mp3 songs or ringtones to Audacity audio block file.
Microsoft Windows software - convert mp3 to au on Windows
Audacity
Audacity is a free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.
Audacity is able to:
- Record live audio.
- Record computer playback on any Windows Vista or later machine.
- Convert tapes and records into digital recordings or CDs.
- Edit WAV, AIFF, FLAC, MP2, MP3 or Ogg Vorbis sound files.
- AC3, M4A/M4R (AAC), WMA and other formats supported using optional libraries.
- Cut, copy, splice or mix sounds together.
- Numerous effects including change the speed or pitch of a recording.
Apple macOS / Mac OS X software - convert mp3 to au on OS X
Audacity for Mac
Audacity for Mac is free multi-track audio editing tool that allows users to record live audio, convert old tapes to modern formats, edit various audio file types, cut, copy, mix audio data and adds various effects, like change speed of audio etc.
Linux/Unix software 
- convert mp3 to au on Linux
Audacity for Linux
Audacity for Linux is multi-track audio editor and recorder with various features, like recording audio, edit WAV, AIFF, FLAC, MP2, MP3 or Ogg Vorbis files, or cut, copy, splice or mix sounds together.
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