From Wondershare Software:
Wondershare iPhone Ringtone Maker, a powerful iPhone ringtone maker software, is your ideal solution to make your very own ringtone for iPhone\iPhone 3G\iPhone 3GS. This iPhone Ringtone Maker can not only convert video files(AVI, WMV, MPEG, MOV, FLV, MKV, RM, XviD, MP4, H.264/AVC, AVCHD, M2TS, .DAT, 3GP, VOB) to iPhone Ringtone, but also can convert various audio tracks(WMA, WAV, RA, M4A, MP3) to iPhone M4R ringtone. Plus, Wondershare iPhone Ringtone Maker can create custom ringtone from CD and recorder sounds, so be free to import your favorites.
Wondershare iphone Ringtone Maker has adopted visible waveforms operation, which includes delete, duplicate, plaster, edit, insert, enlarge, reduce, repeal, restore, real-time preview and more, so you can make iPhone Ringtone easy and convenient. plus, it apply special effects like fade in, fade out, amplify, echo, delay, phase, chorus and normalize to your iPhone ringtone according to your specific needs. Besides, this ringtone maker for iPhone helps you transfer iPhone M4R Ringtone to your iPhone\ iPhone 3G\iPhone 3GS or iTunes automatically and manage ringtones on your iPhone freely with iPhone Ringtone Manager in good order.