Tired with your flat iPhone ringtones and wanna cool ringtones for
your iPhone, right? I just find a really cool iPhone ringtone tool to
make your own iPhone ringtone easily. You just need some songs that
already exist on your computer, or video that you really like the sound
of it. Most important, Aiseesoft iPhone Ringtone Maker
Step 1: Download Aiseesoft iPhone Ringtone Maker
Step 2: Load your music
Click “Browse” on the right side of “Input File” to find your music
that you want to make as your iPhone ringtone and click “Open” to load
it into Aiseesoft iPhone Ringtone Maker.
Step 3: Make your Ringtone
1. Drag your “Start Slider” to the beginning of the “Slider Bar” and “End Slider” to the end, then click 
to listen your whole audio file.
2. a. Drag the “Start Slider” to find where is the beginning of your ringtone and Drag “End Slider” to make an End of it.
b. Type the exact “Start Time” and “End Time” in the box and click "Enter" to choose your ringtone.
3. Click 
to pre-listen your ringtone.
4. If you want to put your ringtone directly on your iPhone, just plug
your iPhone to your computer and check “Export to iPhone” (4). If you
just want to put it on your computer, click “Browse” on the right of
“Local Output Folder” to find a place to put it.
After you have done the 3 steps, just click “Generate” to make your iPhone ringtone.
PS:
If you are a Mac user: here is Aiseesoft iPhone Ringtone Maker for Mac
Here I also recommend you Aiseesoft DVD to iPod Suite
It includes Aiseesoft DVD to iPod Converter, Aiseesoft iPod Movie Converter and Aiseesoft iPod to Computer Transfer
For Mac users: Aiseesoft DVD to iPod Suite for Mac
