MP3 to M4R Converter

MP3 (MPEG-1 Audio Layer III)

Popular compression and lossy format with small file size and far from the highest sound quality. The emergence of the MP3 format was made possible by the joint efforts of a development team of almost 40 people who have been working on the project for several years. Compared to lossy files, MP3 songs take up much less disk space thanks to a special algorithm. Other advantages of MP3 include excellent compatibility with various programs and audio devices. Despite the fact that, due to the age of MP3, today it does not shine with compression efficiency, its popularity remains very high due to its versatility - the extension is supported on any operating system, a lot of both standard and specialized multimedia software plays this file format. MP3 files can be created with high or low bit rate, which affects the quality of the resulting file. The principle of compression is to reduce the accuracy of some parts of the sound stream, which is almost indistinguishable to most people's ears.

M4R (MPEG-4 Part 14)

M4A is an audio file compressed using MPEG-4 technology, which has a lossy compression algorithm. The M4R file contains the ringtone in the M4A MPEG-4 file format, which uses the default audio format to store the song in the iPhone. The M4R format, like M4A, is designed to download audio to Apple devices through iTunes. Such a file can be created by converting other formats or uploading it from the official iTunes store. You don't have to look for converters or special programs, you can make m4r from m4a using standard tools of any operating system by changing the last letter of the extension manually. But for this to work like an iPhone ringtone, remember that it can only be created from songs purchased from the iTunes music store.