AMR File (What It Is & How to Open One)

A file with the AMR file extension is an Adaptive Multi-Charge ACELP Codec file. ACELP is a human speech audio compression algorithm that stands for Algebraic Code Excited Linear Prediction.

Subsequently, Adaptive Multi-Charge is a compression expertise used for encoding audio information which are primarily speech-based, like for cellular phone voice recordings and VoIP functions.

To cut back bandwidth utilization when there’s no audio enjoying within the file, the AMR format makes use of applied sciences like Discontinuous Transmission (DTX), Consolation Noise Era (CNG), and Voice Exercise Detection (VAD).

AMR information are saved in one in all two codecs relying on the frequency vary. The methodology and particular file extension may differ due to this. There’s extra on that under.

Lifewire / Derek Abella

AMR can also be an acronym for agent message router and audio/modem riser (an growth slot on a motherboard), however they don’t have anything to do with the Adaptive Multi-Charge file format.

Tips on how to Play an AMR File

Many well-liked audio/video gamers will open AMR information by default. This consists of VLC, AMR Participant, MPC-HC, and QuickTime. To play the file with Home windows Media Participant may require Okay-Lite Codec Pack.

Audacity is principally an audio editor however it does help enjoying the file, and so, in fact, it has the additional benefit of letting you edit the audio as nicely.

Some Apple, Android, and BlackBerry gadgets create AMR information, too, for voice recordings, so they need to be capable to play them with out a particular app.

Tips on how to Convert an AMR File

If the file is fairly small, we suggest utilizing a free on-line file converter. One of the best on-line AMR converter might be FileZigZag as a result of it may convert the file to MP3, WAV, M4A, AIFF, FLAC, AAC, OGG, WMA, and different codecs with out having to obtain the software program to your pc.

An alternative choice for changing it’s with Like FileZigZag, it runs fully in your net browser. Simply add the file there, inform it the format you need it to be transformed to, after which obtain the brand new file to your pc.

Along with AMR Participant from above, which cannot solely play but in addition convert this format, is a handful of different converters that may be downloaded.

One program talked about in these downloadable AMR converters is Freemake Audio Converter, however the firm that delivers that program additionally makes one referred to as Freemake Video Converter. We point out this program as a result of whereas it is primarily thought-about a video file converter, it does additionally help the format. Downloading it could show to be helpful sooner or later in case you ever must convert a video file.

Extra Data on AMR Information

Any AMR file is in one in all these codecs: AMR-WB (Wideband) or AMR-NB (Narrowband).

Adaptive Multi-Charge – WideBand (AMR-WB) information help a frequency vary of fifty Hz to 7 Khz and bit charges of 12.65 kbps to 23.85 kbps. They could use the AWB file extension as an alternative.

AMR-NB information, nonetheless, have a bit fee of 4.75 kbps to 12.2 kbps and will finish in .3GA, too.

Nonetheless Cannot Open Your File?

If you cannot appear to get your file to open with the strategies from above, double-check that you simply’re studying the file extension appropriately. It is easy to confuse it with one which’s spelled equally, however comparable file extensions do not imply that the file codecs are comparable or that they can be utilized with the identical software program instruments.

Some file extensions that could be confused for this one embrace AMP (Adobe Photoshop Curves Map), AMC (AMC Video), AML (ACPI Machine Language), AM (Automake Makefile Template), AMV (Anime Music Video), CAMREC, AMS (Adobe Monitor Setup), and AMF (Additive Manufacturing).

Since this format is predicated on the 3GPP container format, 3GA is one other file extension this format may use. 3GA is used for audio, so do not confuse it with the 3GP video container format.

Along with that, and to make it all of the extra complicated, AMR-WB information that finish with AWB, are very comparable in spelling to AWBR information which are WriteOnline WordBar information used with Clicker. Once more, the 2 codecs don’t have anything to do with one another and do not work with the identical functions.


  • Do telephones help the .AMR file format?

    Sure Android telephones do, however iOS hasn’t for a few years. You’ll need to lookup your particular gadget and verify if it helps .AMR information, and if it does not, you will want a third-party software that does help the file kind.

  • What applications help .AMR conversion?

    Outdoors of free web-based audio converters, most pc audio conversion functions help the file format and may convert it into one thing extra widely-supported, like .MP3.

See also  WaveRider

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