.AMR File Extension

.AMR File Extension

File Type

Adaptive Multi-Rate Codec File

Developer Ericsson
3.4  |  505 Votes
Category Audio Files
Format Binary

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.

More Information
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.Free Download

Programs that open AMR files

Updated May 21, 2020

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