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Convert Amr Files

Filestar is the ultimate Adaptive Multi-Rate Codec File converter and can convert .amr files to 127 other formats.

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Amr Files on your desktop and select Convert with Filestar.

  3. Type convert to in the search box and choose from the 127 available destination formats.

  4. Press Convert.

convert amr to mp3

Popular Amr Conversions

See all 127 destination formats

Convert From Amr To

.mp3 MP3 Audio File
.pdf Portable Document Format File
.mp4 MPEG-4 Video
.wav WAVE Audio File
.flv Animate Video
.avi Audio Video Interleave File
.divx DivX-Encoded Movie File
.3gp 3GPP Multimedia File
.webm WebM Video
.xvid Xvid-Encoded Video
.mkv Matroska Video
.ogg Ogg Vorbis Audio File
.mov Apple QuickTime Movie
.mpeg MPEG Movie
.m4a MPEG-4 Audio File
.flac Free Lossless Audio Codec File
.wmv Windows Media Video
.doc Word Document
.avchd High Definition Video
.docx Word Open XML Document

Convert To Amr From

.mp3 MP3 Audio File
.mp4 MPEG-4 Video
.wav WAVE Audio File
.flv Animate Video
.avi Audio Video Interleave File
.divx DivX-Encoded Movie File
.3gp 3GPP Multimedia File
.webm WebM Video
.xvid Xvid-Encoded Video
.ogg Ogg Vorbis Audio File
.mkv Matroska Video
.mov Apple QuickTime Movie
.mpeg MPEG Movie
.wmv Windows Media Video
.m4a MPEG-4 Audio File
.flac Free Lossless Audio Codec File
.avchd High Definition Video
.wma Windows Media Audio File
.rm RealMedia File
.vob DVD Video Object File

About the Amr file format

Name
Adaptive Multi-Rate Codec File
Extension
.amr
Format
Binary
Category
Audio
Developer
Nokia
Description
An AMR file is an audio file saved in a compressed audio format developed by Ericsson. It is used by many 3G cell phones for voice recordings such as MMS messages. AMR files incorporate the Algebraic Code Excited Linear Prediction (ACELP) algorithm, which is designed to efficiently compress human speech audio.
MIME Type
audio/amr
Sample
sample.amr
Wikipedia
.amr on Wikipedia

Adaptive Multi-Rate Codec File (AMR) is an audio format file that is compressed and used on 3G cell phones. It was developed by Ericsson and is used for phone recordings like Multimedia Messaging Services (MMS).

The Algebraic Code Excited Linear Prediction (ACELP) codec incorporated enables it to compress human speech data better than AAC, MP3, or WMA. AMR is made up of AMR-NB and AMR-WB that are used to encode signals at varying bit rates. The NB (narrowband) is used with low bitrates while the WB (wideband) is used with higher bitrates.

The file format became fully operational in the year 1999, and since then, it is used in GSM and UMTS popularly known as 2G and 3G networks, respectively. It is prevalent with VoIP applications. The file uses the .amr file extension.

Discontinuous transmission (DTX) and Voice activity detection (VAD) applications are used by the AMR to reduce the bandwidth periods during silence periods. The file is also referred to as a hybrid speech coder, due to its ability to transform speech parameter to waveform signals.

Nokia, Ericsson, and Nippon Telegraph and Telephone ( NTT) have incorporated AMR codecs in their operations. Also, the Apple QuickTime Player and RealNetworks RealPlayer can play AMR files.

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