Convert audio: m4r to opus

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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

.opus

OPUS files are found on the Golden Orchard Apple II cd-roms and are audio formats. OPUS files are a totally open source, highly versatile audio codec and has been designed to support the transport over the internet, but can also be used by storage and streaming applications. Mime-type: application/octet-stream Learn more about opus