MP3 to M4B Converter
- Click Add Your Media and upload the MP3 file.
- Ensure that M4B is chosen as the output format.
- Press the Convert button to download the audiobook file.
Want to convert multiple audio files at once? The desktop MP3-to-M4B converter makes it quick and easy to do so, especially if you need to join audio files.
How to convert MP3 to M4B online
What is M4B?
Full name
MPEG-4 Audiobook File
Format type
Audio
Developed by
Apple
Description
M4B audio files have been designed by Apple, and these files contain spoken content in the form of audiobooks and podcasts. The most important feature of M4B audio files is that they allow bookmarks to be inserted, so one can resume listening to an audio file from where one stopped listening to it. This bookmarks support makes M4B especially useful for long recordings and audiobook chapters.
File extension
.m4b
Technical details
The M4B files can either use the AAC codec or Apple Lossless codec. It is possible that in some instances, the M4B audio files can be protected using DRM, and hence require licenses for playback.
Associated programs
iTunes, QuickTime Player, Windows Media Player, VLC, Apple Books, etc.
What is MP3?
Full name
MPEG-1 Audio Layer III
Format type
Audio
Developed by
Specialists from Fraunhofer Society
Description
The MP3 audio format is one of the most widespread in the world. MP3 audio format was created in 1991, and its technical description was published in 1993 as the basis of MPEG-1 audio format. MP3 audio files are used everywhere, except when dealing with long audiobooks, where there is no option to bookmark or have chapters. That is the key difference in M4B vs MP3 for audiobook use.
File extension
.mp3
Technical details
The compression in MP3 is lossy, and the resulting quality will depend primarily on bitrate – the higher the bitrate value, the better the playback, the lower – vice versa, the smaller the size. For spoken audio, the right settings help preserve narration quality while keeping the file manageable.
Associated programs
Almost any multimedia program
Primary use:
- M4B — Specifically designed for audio books and supports chapters and bookmarks.
- MP3 — Used for general-purpose audio like music or podcasts.
Often audiobooks are split into many MP3 tracks, making your library cluttered. Movavi Video Converter is perfect for when you want a cleaner file by merging these episodes. Use it to organize chapters and create a single audiobook that is much easier to manage. It allows you to join tracks seamlessly, convert MP3 to M4B, and prepare your files for a better experience in Apple Books.
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Frequently asked questions
What is the advantage of M4B over MP3 for audiobooks?
What is the advantage of M4B over MP3 for audiobooks?
M4B format is more suitable for use in audiobooks since it has the ability to create bookmarks within the file. In other words, whereas the MP3 file will be best to use where it comes to audio songs and pieces, it seems that the M4B format should work well for the audiobooks.
Can I merge multiple MP3 files into a single M4B?
Can I merge multiple MP3 files into a single M4B?
Of course, you can always combine multiple MP3 files into a single M4B file, particularly in instances where the audiobook files have been broken into various bits. All you need to do is load all these MP3 files in order and then convert them for your audiobook.
Will my converted M4B files work on Apple Books?
Will my converted M4B files work on Apple Books?
Yes, M4B files are native for Apple Books. This means that after conversion, you will be able to work with files as audiobooks rather than audio music files.
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