Convert M4R to MP4 - online and free
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M4R (Audio)
| File extension | .m4r |
| Category | Audio File |
| Description | The M4R is an iPhone ringtone file that is essentially a renamed AAC (m4a) file. Not all iTunes Music Store songs can be used to create M4R ringtones. In order to create an M4R ring tone from an iTunes song, the song must allow for M4R ringtone creation. An M4R ring tone is automatically transferred to a user's iPhone when the iPhone is synced with the user's computer. |
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| Technical Details | M4R is essentially a renamed AAC (M4A) file - it is similar to MP3 but compresses the digital audio files further. It is part of the MPEG-4 standard and is specified in the ISO/IEC standard 14496-3. It is a lossy algorithm much like AAC and MP3. M4R supports auditory masking - essentially discarding data with minimal loss of quality. |
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| Developed by | Apple |
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MP4 (Video)
| File extension | .mp4 |
| Category | Video File |
| Description | MP4 files (MPEG-4 Part 14) are multimedia files. MP4 is a container format that can store video, audio and subtitle data (as well as more depending on content). Since stores like iTunes uses this container format, and it is used with iPod and PlayStation Portable (PSP), MP4 files have become more common. |
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| Technical Details | MPEG-4 Part 14 or MP4, formally ISO/IEC 14496-14:2003, is a multimedia container format standard specified as a part of MPEG-4. It is most commonly used to store digital video and digital audio streams, especially those defined by MPEG, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 Part 14 allows streaming over the Internet. A separate hint track is used to include streaming information in the file. The only official filename extension for MPEG-4 Part 14 files is .mp4. |
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| Developed by | Moving Picture Experts Group |
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Convert M4R file
Using Zamzar, it is possible to convert M4R files to a variety of other formats
- m4r to aac (Advanced Audio Coding File)
- m4r to ac3 (AC3 Audio File)
- m4r to flac (Free Lossless Audio Codec)
- m4r to m4a (Compressed video file)
- m4r to mp3 (Compressed audio file)
- m4r to mp4 (MPEG-4 Video File)
- m4r to ogg (Ogg Vorbis Compressed Audio File)
- m4r to wav (Windows audio file)
- m4r to wma (Windows Media Audio)