Adaptive Multi-Rate (AMR or AMR-NB) audio codec is a patented audio data compressionscheme optimized for speech coding. AMR was adopted as the standard speech codec by 3GPPin October 1998 and is now widely used in GSM and UMTS. It uses link adaptation to select from one of eight different bit rates based on link conditions.
AMR audio is a file storing spoken audio using the AMR codec. Many modern mobile telephone handsets can store short audio recordings in the AMR format.The common filename extension is .amr. And with the development of technology and science, both free and proprietary programs are developed to convert between this and other formats.
Seldom applications can play AMR audio files. Apart from some applications like Apple QuickTime and RealPlayer, most players can't recognize AMR files. To play AMR files more easily on different applications and devices, it's a good idea to convert AMR files to another compatible audio format. here
iOrgsoft AMR Converter allows you to play AMRvoice recordings on various media players and portable devices by converting AMR to a more easy-to-play audio file fomrat like MP3, WMA, AAC, etc. Meanwhile, it can convert other audio files to AMR format too if you want to share your audio files via MMS or make ringtones from them.
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