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.AMR File Extension

File TypeAdaptive Multi-Rate Codec File

3.5 (425 Votes)
CategoryAudio Files

What is an AMR file?

An AMR file is an audio file saved in a compressed audio format developed by Ericsson. It is optimized for storing spoken audio and is used by many 3G cell phones to store voice recordings, which include MMS messages.

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Screenshot of a .amr file in VideoLAN VLC media player 3
AMR file open in VideoLAN VLC media player 3

AMR files incorporate the Algebraic Code Excited Linear Prediction (ACELP) algorithm, which is designed to efficiently compress human speech audio.

AMR files may be saved in either the AMR-NB (Narrowband) or AMR-WB (Wideband) format. Wideband audio supports a broader frequency range and therefore provides better sound quality.

Open and view .AMR files with File Viewer Plus.

Programs that open AMR files

Updated 5/21/2020

About AMR Files

Our goal is to help you understand what a file with a *.amr suffix is and how to open it.

The Adaptive Multi-Rate Codec file type, file format description, and Mac, Windows, Linux, Android, and iOS programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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