Convert MP3 to AU in 3 steps

Convert MP3 to AU easily within a few seconds using this free and online tool. Our converter has no file size limitations, and conversions are keeping all data from the original audio file. Choose your documents and convert any audio from MP3 to AU.

How to convert MP3 to AU in 3 steps

Our goal was to create a simple but efficient MP3 to AU online converter. That's why we decided to make it so easy to use. All it takes to convert every file is a three-step process.

Upload MP3 file

STEP 1

Upload your MP3 file in the upload box using a 'drag and drop' method or add a link of a document you want to convert.

Converting MP3 to AU

STEP 2

After uploading an audio file, press the 'Start conversion' button and wait a few moments for conversion to be finished.

Download converted AU file

STEP 3

The only thing left for you to do is to download all converted AU audio files to your computer.

MP3 Converter

What is a MP3 file?

When someone is talking about music, this file format is the first one that pops on everyone’s mind. MP3, known as MPEG-1 Audio Layer III or MPEG-2 Audio Layer III, is a coding format for digital audio and one of the methods for compressing audio files. MP3 compression system reduces the number of bytes in a song, while the sound quality stays near the one that’s on CDs. Consider that an average song is around four minutes long, and it uses about 40 MB. But it uses only 4 MB if compressed through the MP3 format. Quite a difference, don’t you think? Besides, a lot of music players support this type of file format, which makes it the most popular audio extension.

AU Converter

What is a AU file?

This type of file represents a simple audio file that was primarily common on NeXT systems and early Web pages. The AU file format was, at first, used by Sun or some similar Unix-based machine, but now, it can be opened with other audio programs as well. To reproduce this file format, you can use Nullsoft Winamp, Apple QuickTime Player, Microsoft Windows Media Player, RealNetworks, RealPlayer Cloud, or Adobe Audition CC. Although AU files are quite small and have poor sound quality, they store information in three sections. The first one is called header, with a maximum of 24 bytes. Next, there’s a variable-length annotation block. And last but not least, there’s the audio data itself.

MP3 to AU conversion is not quite convenient for you? Never mind, there are plenty of formats for you to choose from.

MP3 TO AAC, MP3 TO AC3, MP3 TO AIF, MP3 TO AIFC, MP3 TO AIFF, MP3 TO AMR, MP3 TO AU, MP3 TO CAF, MP3 TO FLAC, MP3 TO M4A, MP3 TO M4B, MP3 TO OGA, MP3 TO SFARK, MP3 TO VOC, MP3 TO WAV, MP3 TO WEBA, MP3 TO WMA and MP3 TO MP3.

If the AU is your starting one, you can choose one of the following conversions.

AU TO AAC, AU TO AC3, AU TO AIF, AU TO AIFC, AU TO AIFF, AU TO AMR, AU TO CAF, AU TO FLAC, AU TO M4A, AU TO M4B, AU TO MP3, AU TO OGA, AU TO SFARK, AU TO VOC, AU TO WAV, AU TO WEBA, AU TO WMA and AU TO AU.

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