AAC to M4R
AAC to M4R converter is known as a professional software. Use this easy-to-use and fast AAC to M4R software to help you convert aac files to M4R conveniently, with it you can set unique ringtone for your iPhone to distinguish from others and enjoy your favourite music.
Free download AAC to M4R iPhone Ringtone supported.
Introduction on how to convert AAC to M4R
Step1, Install AAC to M4R converter in your computer, launch and run it.

Step2, Click "Browse" button to select AAC files you want to convert to M4R format, here you can only add one file each time.
Step3, Press "Play" button, as the chart shows, to find the segment you want to convert AAC to M4R. Drag the two sliders on the interface to set the start time and end time, you can change the value to make it too.

Step4, In the "Local Output Folder", click
to choose destination to store the converted aac to m4r files.
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Step5, Press "Generate" button to start changing aac to m4r. Remember to check "Export to iPhone" if you want to transfer to your iPhone directly.
Step6, Done.
The AAC to M4R converter is so powerful that you can convert ACC files to M4R with super speed. This software supports almost all mainstream audio/video formats including AVI, MPEG, WMV, DivX, MP4, H264/AVC, AVCHD, MKV, RM, MOV, XviD, 3GP, WMAWAV, RA, M4A, MP3 to M4R iPhone ringtone.