MP3 to AU Converter: Convert MP3 Files to AU Successfully Convert MP3 to AU with MP3 to AU Converter with High Quality

Professional and Reliable MP3 to AU Converter

To convert MP3 to AU with no trouble, we need a MP3 to AU Converter. However, there are so many converters on the market, which one should we choose? This article recommends the best and the most professional MP3 to AU Converter for our customers here.

As the most professional audio converter, this MP3 to AU Converter is able to convert among audio formats like MP3, WAV, OGG, MKA, AAC, AC3, AIFF, VOC, VOX, AU, FLAC, WMA, M4A, Apple Lossless, AC3, DTS, etc.

In addition, this converter features to extract audios from videos with good sound quality. You can also edit audios as you wish like trim, merge, clip, split, change audio channel, adjust audio bitrate, compress audios, rename files and so on.

How to Convert MP3 to AU on Windows and Mac?

This MP3 to AU Converter can help do more file converting:

MP3 Converter: Convert MP3 to other formats like convert MP3 to FLAC, WAV, WMA, ALAC, MKA etc. or convert other formats to MP3 like convert MP4, MKV, WTV, FLV, MOV etc. to MP3.

AU Converter:  Convert AU to other formats like convert AU to OGG, convert AU to WMA, convert AU to FLAC etc. Or convert other formats to AU like convert WAV files to AU, convert ALAC, AIFF, MKA, MP3, FLAC, M4V, AC3 etc. to AU.

Powerful Audio Extractor: convert any video to any audio format or extract audio from any video format with no trouble.

Wonderful Guides to Convert MP3 to AU

Free download MP3 to AU Converter (For Windows, For Mac) and run it.


MP3 to AU Converter Windows


MP3 to AU Converter Mac


Step 1 Load MP3 Files to the Software

Click “Add File” button to import files. Or simply drag or drop files to MP3 to AU Converter.


Convert MP3 Files to AU Successfully


Step 2 Select AU as the Format

Click “Profile” drop down button to set the format as “AU SUN AU Format (*.au)”.


  • Trim files to remain your audio segments: Click “Trim” button to set the “Start Time” and “End Time” to keep the wanted parts or remove unwanted parts.
  • Merge separated files into one big file: Right click the selected files to “Merge file into one” from context menu.
  • Split one big file into individual files: Right click the file and click “Split by Chapter” to divide files into different files.
  • Adjust Parameters:  Click “Setting…” button to adjust or change audio channel, sample rate, audio volume, audio bitrate and so on.

Step 3 Convert MP3 to AU

Click “Convert” button to convert MP3 audios to AU with MP3 to AU Converter.

MP3 VS AU: Compare MP3 with AU

 (1) Similarities

①  Audio format

②  Sound quality

③  Support lots of audio encoding formats

(2) Differences

①  MP3 is lossy while AU is lossless.

②  AU is larger than MP3.

③  MP3 is much more compatible with player or devices than AU.


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