Now there is a quite helpful software for iPhone users to create individualized ringtone for Apple iPhone.It is Emicsoft M4R Converter.

Possessing outstanding converting function and pratical trimming function, Emicsoft M4R Converter is able to convert all video/audio formats (including HD format like MTS, M2TS, TS, TP, TRP) to M4R, M4A, AAC, AC3, AIFF, AMR, AU, FLAC, MP3, MP2, OGG, MKA, WAV and WMA.Besides, the Converter can split file length so as to convert certain part of the ringtone.The best Emicsoft M4R Converter, known as a powerful iphone ringtone maker software, provides the most ideal solution for users to perfectly create iphone ringtone with just a few clicks so that iPhone users can set as ringtone freely.