How to Convert M4A to AU Online?

Step 1

Upload M4A File

Drag and drop the M4A files that you want to convert.

Step 2

Convert M4A to AU

Click CONVERT to convert your M4A file(s).

Step 3

Download Converted AU

Click DOWNLOAD to save your converted AU file(s).

Information about M4A and AU File Formats

File Extension
Description
M4A is a filename extension for AAC container format and is developed by Apple Inc. M4A music is bought on the iTunes Store and does not come with DRM protection. In terms of quality, M4A is better than MP3 because it is lossless but still compressed. This means that it occupies less storage space and doesn’t lose quality over time.
Associated Programs
iTunes
Apple QuickTime Player
VLC
Windows Media Player
Developed By
Apple Inc.
MIME Type
audio/mp4a-latm
Useful Link
File Extension
Description
AU is an audio format standard in early web pages NEXT systems. It is also called u-law or Sparc-audio format. Typically, AU files can store audio data and annotation blocks. Initially, it was a headerless audio format, but newer versions have a header, thanks to the six unsigned 32.bit words.
Associated Programs
Audacity
Developed By
Sun Microsystems
MIME Type
audio/au, audio/x-au
Useful Link
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