Aiseesoft iPhone Ringtone Maker for Mac provides a good solution to convert any video and audio to iPhone ringtone M4R format on your Mac.

Key Features

1. Make ringtones from video/audio
Videos in AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4, DivX, XviD, MOV, RM, RMVB, M4V, VOB, ASF, 3GP, 3G2, H.264, QT, MPV, etc. can be converted into iPhone M4R ringtones by this software. Besides, if you need, you can also get your own iPhone ringtones from audio files in MP3, WMA, AAC, WAV, OGG, M4A, RA, RAM, AC3, MP2 and so on.

2. Customize the output ringtones
This software allows you to get any clip from video/audio and convert it to a ringtone. You can also adjust its volume and add the effect of fade-in and fade-out.

3. Pre-listen to the ringtone effects
Before creating a ringtone for your iPhone, you can pre-listen to the sound effect to make timely changes for getting the exact ringtone you want.

4. Manage existing iPhone ringtones
You are allowed to remove or rename iPhone ringtones that already exist, and transfer them to iTunes, Mac or iPhone.

5. Connect more than one iPhone simultaneously
You can connect several iPhone devices to this ringtone maker simultaneously and export different output ringtones at the same time.