What is the difference between .m4r and .aac?
- Extension
- .m4r
- .aac
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Apple Inc.
- Bell Labs, Fraunhofer Institute, Dolby Labs, Sony and Nokia
- Description
- M4R is an iTunes ringtone file that stores mono channel audio. They are identical to the M4A format files only that they are correctly used for ringtones.
- Compressed audio file similar to an .MP3 file, but offers several performance improvements; examples include a higher coding efficiency for both stationary and transient signals, a simpler filterbank, and better handling of frequencies above 16 kHz; maintains quality nearly indistinguishable from the original audio source.
- MIME Type
- audio/x-m4r
- audio/x-aac
- Sample
- sample.aac
- Wikipedia
- .m4r on Wikipedia
- .aac on Wikipedia