Ants iPhone Ringtone Maker is designed to convert audio files to .M4R format as iPhone rightone files. Then you may transfer the rightone files to your iPhone with Apple iTunes software. With Ants iPhone Ringtone Maker, users may set the start / end points. You may choose "Fade In" and "Fade Out" and set their parameters. And you may also configure other parameters "Gain", "High Pass" and "Low Pass". Ants iPhone Ringtone Maker need iTunes to transfer the made ringtone files to your iPhone. Make your own ringtones from popular video/audio files (AVI, MPEG, WMV, DivX, MP4, H.264/AVC, MKV, RM, MOV, MP3, WMA, WAV, RA, M4A, AAC, AC3, OGG).