1. Right click on the song
◦ Select “Get Info”
2. Hit the “Options” tab
3. Check both the “Start Time” and “End Time” boxes
4. Specify what time interval you’d like to use as your ringtone clip
5. Click “OK”
◦ Make sure the song you want is still highlighted
6. Click on “Advanced” in your menu bar
7. Select “Create AAC Version” or “Create Apple Lossless Version” (Make sure your iTunes “Import Settings” are set to “AAC” or “Apple Lossless” and not “MP3″)
8. A duplicate copy of your song will appear in iTunes - this new song will have the same filename but shorter “Time”
◦ Go back to the original song and uncheck those “Start Time” and “End Time” boxes
9. Drag the duplicate song to your Desktop
10. Once the duplicate song is copied to your Desktop, delete the duplicate file in iTunes
11. On your Desktop, rename the file with the “.m4r” file extension - Use the new extension
◦ This turns your song file into an iPhone ringtone file
12. Your “songname.m4a” file should now be named “songname.m4r”
13. Drag the newly renamed .m4r (songname.m4r) file back into iTunes
14. Drag the file over the “Library” column and release when “Library” becomes highlighted
◦ You have to delete the duplicate song file (Step 12) otherwise iTunes won’t import your new .m4r file
15. You should see your new ringtone under “Ringtones” in iTunes
16. Sync your iPhone to get jiggy with your new iPhone ringtones!