Convert AMR to M4A
Fast, free AMR to M4A conversion — works in any browser
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amr
AMR (Adaptive Multi Rate): adaptive encoding with variable bitrate
| File extension | .amr |
|---|---|
| File category | audio |
| Programs | VLC media player Windows Media Player QuickTime Player Audacity |
| Tech description | https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_codec |
| MIME type | audio/amr |
| Developer | 3GPP |
This information compression format allows for optimizing speech encoding. Files in the Adaptive Multi Rate format can be created using phones and smartphones. AMR files are mostly used for voice recordings. The main advantages of the format are the large number of encoding and decoding rates, as well as the small size of the resulting content. With the help of appropriate software, an Adaptive Multi Rate file can be converted into any other audio format.
m4a
M4A — MPEG-4 Audio File
| File extension | .m4a |
|---|---|
| File category | audio |
| Programs | Apple iTunes VLC media player Windows Media Player foobar2000 Winamp |
| Tech description | https://en.wikipedia.org/wiki/M4A |
| MIME type | audio/mp4 audio/x-m4a |
| Developer | Apple Inc. |
M4A is an audio-only file container based on the MPEG-4 standard, introduced by Apple in 2004. The .m4a extension distinguishes audio-only files from .mp4 files that contain video. M4A files are most commonly encoded with the AAC codec, offering better audio quality than MP3 at the same file size. Lossless encoding using Apple Lossless (ALAC) is also possible within the M4A container. M4A is the default format for music purchased from the iTunes Store and Apple Music. It is natively supported on all Apple devices, and plays on Android, Windows, macOS, VLC, foobar2000, and Windows Media Player.
FAQ
How to convert M4A to AMR?
Upload your M4A file, select AMR as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert M4A to AMR?
Most M4A files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert M4A files online?
Yes. All uploaded M4A files and converted AMR results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert M4A on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the M4A file and convert to AMR without installing any app.
