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File converter / Audio / Convert to MP3 / M4R converter / MP3 to M4R

Convert MP3 to M4R

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Choose file to convert to .m4r

You can convert MP3 file to M4R as well as to variety of other formats with free online converter.

How to convert mp3 to m4r?

How to convert m4r to mp3?
Step 1
Upload mp3-file
Select file, which you want to convert from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2
Select «to m4r»
Select m4r or any other format, which you want to convert (more 200 supported formats)
Step 3
Download your m4r file
Wait till your file will be converted and click download m4r -file

MP3 Audio File

File extension .mp3
File category audio
Description

MP3 is a digital format for storage of audio files designed by MPEG programmers. It is one of the most required codecs for digital coding. The format is widely used in various file-sharing sites for evaluation downloading.

With this format, it is possible to compress CD tracks up to 1/10 of their original size while maintaining high playback quality. Overtones, which cannot be perceived by a human ear, are removed. Complex algorithms allow for smaller size of tracks. As a result, one compact disk can contain several hundred songs. MP3 is compatible with all most popular operating systems and supported by the most of modern DVD-players and music systems.

Technical details

Prior to MP3 introduction, MPEG-1 had been widely used. That format contained not only audio data, but images as well. MP3 breaks an audio file into parts of the same length. When the processing is over, each part is packed into its own frame. It involves the technology of spectral limit that requires a continuous input signal to provide the use of two adjacent frames.

When spectral deleting is over, the file is to be compressed with mathematic methods. If necessary, compression rate can be changed, even inside the same frame. Files of 128 kbit/s have 11-fold compression. Further reduction of the file size will lead to significant deterioration in sound quality.

Programs
Microsoft Windows Media Player
VLC media player
MPlayer
jetAudio
Zune
Audacity
Apple iTunes
Plex Media Center
Amarok
Xine
Totem
Developer Moving Picture Experts Group
MIME type
audio/mp3
audio/mpeg3
audio/mpg
audio/mpeg
audio/x-mpeg
audio/x-mpeg-3
audio/mp3
audio/x-mpegaudio
audio/x-mpg
audio/x-mp3

iPhone Ringtone File

File extension .m4r
File category audio
Programs
Apple QuickTime Player
Main program Apple iTunes
Developer Apple Inc
MIME type
audio/aac