Omni-Converter

M4B to AU Converter

Convert M4B audio files to AU directly with Omni-Converter. Files use the same Omni-Converter processing engine.

How this conversion route works

Choose a M4B file. Omni-Converter is already set to create AU, and you can adjust compression when the output format supports it.

Input formatM4B
Output formatAU
Media typeaudio
Output compressionFixed / format-managed
Input extension.m4b
Output extension.au