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Convert m4b to au

  1. Download and install the latest version of Filestar.

  2. Right click on one or more M4b file(s) on your desktop and select Convert with Filestar.

  3. Type convert to au in the search box.

  4. Press Convert.

What is the difference between .m4b and .au?

Name
MPEG-4 Audio Book File
Audacity Audio File
Extension
.m4b
.au
Format
Binary
Binary
Category
Audio
Audio
Developer
Apple
Audacity
Description
It is an audiobook file compressed using .AAC algorithm based on MPEG-4 container format. It is similar to .M4A file but its denoted as an audiobook and supporting audio players can bookmark it.
Audio file created by Audacity, a free, cross platform audio editor; uses a proprietary format that can only be opened by Audacity; saved as one of multiple audio data files for an Audacity project (.AUD).
MIME Type
audio/x-m4a
audio/basic
Sample
sample.m4b
sample.au
Wikipedia
.m4b on Wikipedia
.au on Wikipedia

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