Convert .M4B to .AU

This guide explains how to convert .M4B files to .AU and provides information about both file formats.

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About .M4B

M4B is a file extension for an audiobook file encoded with Advanced Audio Codec (AAC) and stored in the MPEG-4 format. It supports features like chapter markers and bookmarking, making it suitable for audiobooks.

M4B files are audio files used for audiobooks, supporting bookmarking and chapter breaks.

Learn more about .M4B.

About .AU

.AU is an audio file format originally developed by Sun Microsystems. It is commonly used for simple audio recordings and is supported by various audio playback applications.

.AU files are audio files typically used for sound recordings and can be played using compatible audio software across various platforms.

Learn more about .AU.

Conversion tools

These tools support converting .M4B to .AU.

Movavi Video Converter

Movavi Video Converter is a desktop media converter with an extensive official list of supported input and output formats across video, audio, and image categories, promoted through Movavi’s affiliate platform and partner networks.

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