How to Convert AMR to M4B Online?

Step 1

Upload AMR File

Drag and drop the AMR files that you want to convert.

Step 2

Convert AMR to M4B

Click CONVERT to convert your AMR file(s).

Step 3

Download Converted M4B

Click DOWNLOAD to save your converted M4B file(s).

Information about AMR and M4B File Formats

File Extension
Description
AMR (Adaptive Multi-Rate Audio Codec) is a sound compression format that is designed for speech coding. It is today widely used in UMTS (Universal Mobile Telecommunication System) and GSM (Global System for Mobile Communications). Most modern mobile phones can save short sound recording clips in AMR format and can be converted to other standard sound formats using a third-party program like Wondershare UniConverter.
Associated Programs
AMR Player
Mplayer
VLC Media Player
QuickTime Player
Developed By
3GPP (Third Generation Partnership Project)
MIME Type
audio/amr
Useful Link
File Extension
Description
M4B is an audio filename extension for AAC format, which is developed by Apple Inc. It is mainly used on podcast and audiobook files. Typically, M4B files contain audio and other metadata like images, hyperlinks, and chapter markers. M4B files are DRM copy-protected and can be opened on Apple iTunes and QuickTime Player.
Associated Programs
Apple iTunes
Apple QuickTime Player
Developed By
Apple Inc.
MIME Type
audio/x-m4b
Useful Link
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