How to Convert AMR to M4B Online?
Upload AMR File
Drag and drop the AMR files that you want to convert.
Convert AMR to M4B
Click CONVERT to convert your AMR file(s).
Download Converted M4B
Click DOWNLOAD to save your converted M4B file(s).
Information about AMR and M4B File Formats
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.
VLC Media Player
3GPP (Third Generation Partnership Project)
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.
Apple QuickTime Player
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