What Is an AMR File?

A file with the AMRfile extensionis an Adaptive Multi-Rate ACELP Codec file.

ACELP is a human speech audio compression algorithm that stands for Algebraic Code Excited Linear Prediction.

Illustration of a person playing a personal message from an AMR file on a computer

Lifewire / Derek Abella

AMR files are saved in one of two formats, depending on the frequency range.

The methodology and specific file extension might differ because of this.

There’s more on that below.

AMR conversion at FileZigZag

Plus, it’s cross-platform, so it will run on Windows, Mac, and Linux.

Some other options includeAMR Player,MPC-HC, andQuickTime.

Be sure toreview Audacity’s privacy policyto ensure youre comfortable with its terms before you download and use it.

Like FileZigZag, it runs entirely in your web net web surfer.

Still Can’t Open It?

3GA is used for audio, so don’t confuse it with the3GPvideo container format.

They might use the AWB file extension instead.

FAQ

Certain Android phones do, but iOS hasn’t supported the AMR format for many years.