You should be able to convert M4A audio files to Adaptive Multi-Rate compressed audio format using many converter programs, including those listed belows.
Home > Search converters: m4a to amr
Conversion of m4a file format to amr file format beta
Search for m4a to amr converter or software able to handle these file types.
Convert MPEG-4 compressed audio to Adaptive Multi-Rate compressed audio.
We have found 6 software records in our database eligible for .m4a to .amr file format conversion.
Microsoft Windows software 
- convert m4a to amr on Windows
Freemake Audio Converter
A popular free audio converter
File extension | Convert | Open | Save | Edit | Create | Import | Export | Extract |
|---|---|---|---|---|---|---|---|---|
Convert from m4a file | Yes, Freemake Audio Converter supports m4a file conversion as a source file type. | No | No | No | No | No | No | No |
to amr file | Yes, Freemake Audio Converter supports amr file conversion as a target file type. | No | No | No | No | No | No | No |
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned m4a to amr. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
SUPER
Universal All Purpose Free Media, Audio & Video Converter Player Recorder
Freemake Video Converter
One of the most popular and succesfful free video conversion sofrware
WavePad
An audio editing software for Windows and Mac
Softe Audio Tools
A multimedia player with conversion capabilities
Apple macOS / Mac OS X software 
- convert m4a to amr on OS X
Tiny Audio Converter
Audio converter for Mac
Additional links: Open m4a file, Open amr file
M4A
Files with m4a extension are audio files stored in MPEG-4 (MP4) container and use AAC (Advanced Audio Coding), or Apple Lossless (ALAC) audio compression. M4A is very popular on Mac computers, because it is default audio format used by iTunes. M4A is also default audio format for Apple portable devices (iPod, iPhone, iPad).
AMR
Files with amr extension can be usually found as songs or music saved in Adaptive Multi-Rate compressed audio format. Playble in several media players, like VLC player. Also AMR format is supported by many mobile phones.
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