I am the kind of person who constantly changes their desktop background, their PS3 background, and most importantly in this instance, their cellphone ringtone. This Instructable is for a method I use to make all my own ringtones.
Step 1: Getting Started
First of all, if you don't have audacity go get it. Here's a link: audacity.sourceforge.net/.
Now on to the real part. Open up Audacity and select click Project>Import Audio. Or you can just hit Ctrl+I. When the window comes up direct it to the song you wish to use.
Step 2: (Possible) Step 2
Now this step may or may not be necessary. Click the space between the mute buttons and the track options menu or drag select the entire track. Now click Effects>Amplify and adjust the slider until the "New peak" is between 0 and -1. OK it and move on to
Step 3: Shortening (Not Vegetable)
If your track is too long then you may want to shorten it. Play the track and select the area before the area you want to be your ringtone. It should be from the beginning of the track to where the ring tone will begin. Delete it. Repeat for the section after the ringtone.
Step 4: Exporting
The last Audacity involved step is to export the audio. Click File>Export as MP3. Save it wherever you like and then close Audacity.
Step 5: The Other Program: AMR to MP3 Converter
The other major program used in this process is the AMR to MP3 converter. If you haven't gotten it yet you can get it here.
Open it up and under the MP3 to AMR tab import any would be ringtones.
Step 6: Convert
When the little window pops up it's done. Hit OK and close it down.
Step 7: Exporting
The last part is to get it to your phone. You could email it or if you have the cable you could do it that way but for me the fastest way is to use bluetooth. Connect up your phone to your computer.
Then open your conversion export folder and find the ringtone you've made. Right click it and select send to:>Bluetooth Device. Select your phone and send it off.
Your phone will probably ask you for permission to recieve the file. Say yes and it will transfer in a few moments.
Step 8: That's It
Congrats. That's it. Enjoy your silly tunes whenever you get a call.