AMR is Adaptive Multi Rate which is a audio recording file format for certain mobile phones.Originally the development of AMR files was from the Ericsson (Sony Ericsson) team which now has become the widely used mobile extension on Sony ericsson cell phones such as SE KE 750i.
Why AMR files ?
You must be wondering “Why not use the widely known extensions like Mp3 or WMA?” Because both the extensions occupy large size when compared to amr format.The amr algorithm is built such that .amr files provide better audio compression on mobile phones just like flac files which are well known for good compression ratio and quality output! (More about Flac files)
Play .amr files
Note that AMR files are playable only in Mobile phones, so if you want to play them on your PC then you have to convert amr to mp3,wma format by downloading suitable amr tools such as “AMR Player” or “Mobile Amr converter”
Mp3 players like Winamp & lite mp3 players like Foobar or 1by1 doesn’t support opening of amr files.Windows or Mac OS platform that have Quick time player by Apple or the Real player installed can also open,play amr files!
Written by Sid
The innocent mastermind and the editor of this blog, I am a 19 year old 'normal' kid. With 2+ years of blogging experience and web research, I've enjoyed my share of success and happiness through blogging and strive my best to provide clear ideas on tech.