.AMR File Extension

Adaptive Multi-rate Codec File

Developer Ericsson
3.4  |  738 Votes
Category Audio Files
Format Binary

What is an AMR file?

An AMR file is an audio file saved in a compressed 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. Various media players can open AMR files, including VideoLAN VLC media player and Apple QuickTime Player.

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, designed to compress human speech audio efficiently. Additionally, the files may be saved in the AMR-NB (Narrowband) or AMR-WB (Wideband) format. Wideband audio supports a broader frequency range, providing better sound quality.

How to open an AMR file

You can open and play an AMR file in VideoLAN VLC media player (multiplatform), Microsoft Groove Music (Windows), or Apple QuickTime Player (Mac). You can also edit the audio data an AMR file contains in Audacity (multiplatform), provided Audacity's optional FFmpeg library is installed.

How to convert an AMR file

VideoLAN VLC media player, FFmpeg, and Audacity (with the optional FFmpeg library installed) can convert AMR files to other audio formats. For example, VLC can convert AMR files to:

  • .MP3 - MP3 Audio
  • .OGG - Ogg Vorbis Audio
  • .FLAC - Free Lossless Audio Codec
Open and view .AMR files with File Viewer Plus.Free Download

Programs that open AMR files

Updated May 5, 2023

Verified by FileInfo.com

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