M4B to M4A converter

Convert your file from MPEG-4 Audio Book File to MPEG-4 Audio Layer with this M4B to M4A converter.

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Optional Settings

Change audio frequency:

Change audio channels:

Trim audio:

Enter the timestamps of where you want to trim your audio. The format is HH:MM:SS. HH = hour, MM = minutes, SS = seconds.

Example: 00:02:23 for 2 minutes and 23 seconds.

Normalize audio

Normalize Type:

Normalize Target Level:

Normalize Target Level EBU:

Normalize Loudness Range Target EBU:

Normalize True Peak EBU:

Select audio codec:

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How to convert a M4B to a M4A file?

Choose the M4B file you want to convert
Change quality or size (optional)
Click on "Start conversion" to convert your file from M4B to M4A
Download your M4A file

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File Format

M4B (MPEG-4 Audio Book File)

M4B files are audiobook files based on the very well-known and common container format MPEG-4. Typically, they are compressed using .AAC encoding. M4B files are very similar if not almost identical to another audio file format that uses the M4A file ...

File Format

M4A (MPEG-4 Audio Layer)

M4A is short for MPEG-4 Part 14 and the file type was created by Apple in 2004 using the QuickTime File Format. The iTunes store runs on M4A file downloads (15 billion files worldwide). It is a digital multimedia container format used to store audio ...