M4R to AAC Converter

Select files for conversion or just drag and drop them to the upload area

How to convert M4R files to AAC online?

Step 1.

Upload M4R-file

Click "Choose File" button to select a m4r file on your computer. M4R file size can be up to 50 Mb.
Step 2.

Convert M4R to AAC

Click "Convert" button to start conversion.
Step 3.

Download your AAC

Let the file convert and you can download your AAC file right afterwards.

Information about M4R and AAC file formats

Name M4R AAC
Full name M4R - MPEG 4 Ringtones Audio AAC - Advanced Audio Coding
File extension .m4r .aac
MIME type audio/aac audio/aac
Developed by Apple Inc. Bell Labs, Fraunhofer Institute etc.
Type of format Audio compression format
Description Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.
Technical details AAC supports inclusion of 48 full-bandwidth audio channels in one stream plus 16 low frequency effects channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The quality for stereo is satisfactory to modest requirements at 96 kbit/s in joint stereo mode; however, hi-fi transparency demands data rates of at least 128 kbit/s.
Associated programs Apple QuickTime Player, Apple iTunes foobar2000, AIMP, DirectShow, QuickTime, VLC media player.
Wiki http://en.wikipedia.org/wiki/MPEG-4_Part_14 https://en.wikipedia.org/wiki/Advanced_Audio_Coding