Convert audio: m4r to sfm

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.m4r

A M4R extension is the extension given to a ringtone file, created for the iPhone by Apple Inc. Basically, a M4R file is just a M4A file that has been renamed. All music files can be converted to an iPhoe ringtone by renaming a music clip of maximum 30 second length to .M4R. Import the […] Learn more about m4r

.sfm

The SFM file type is an audio file used by Dart Pro 98 Soundtree Structure. This is a program used to restore audio and reduce noises in audio files. Learn more about sfm