How to Convert AAC to M4R?
It is currently the most powerful AAC to M4R Converting Tool for iPhone lovers to change their iPhone Ringtone with ease!
In addition, a wide range of video and audio formats are supported, such as MPEG, WMV, MP4, DivX, MOV, RM, MP3, WMA, MIDI ect.
Screenshot:

Guide:
Step 1: Free download AAC to M4R Converter. Then import files
by clicking the button
.
Step 2: Extract segments from the source file.

Note: Click
to pre-listen the target file before converted.
Step 3: Set output path by clicking the button "Browse" in the "Local Output Folder" option.
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Stejp 4: Check the item
to upload M4R files to iPhone directly.
Step 5: Click the button
to start converting AAC to M4R.
It is easy for you to convert AAC files to M4R as your iPhone Ringtone!