Convert MP3 to AMR
Convert your MP3 files to AMR online
MP3 (more specifically, MPEG-1/2/2.5 Layer 3; but not MPEG-3)
A standardized file for storing audio information. Supported by virtually all music players and playable on almost all mobile devices. When the audio data is compressed, the sound quality decreases, albeit insignificantly. The compression process erases the frequency that is imperceivable to the human ear. This format allows you to save storage space. You can store and send the audio files after compression. The MP3 format was developed by the German company Fraunhofer IIS. The user can adjust the compression ratio and the audio file quality.
AMR (Adaptive Multi Rate): adaptive encoding with variable bitrate
This information compression format allows for optimizing speech encoding. Files in the Adaptive Multi Rate format can be created using phones and smartphones. AMR files are mostly used for voice recordings. The main advantages of the format are the large number of encoding and decoding rates, as well as the small size of the resulting content. With the help of appropriate software, an Adaptive Multi Rate file can be converted into any other audio format.