This is for the people that have used http://www.hacktheiphone.com/index.html and unlocked their phone
First download wavepad then open whatever mp3 file you want as a ringtone. Next edit the length of the ringtone by selecting and cutting out the unwanted parts. Once you got the the part that you want as your ringtone highlight and select the whole mp3, now heres the part to make them sound good, go up to effects and go to high-pass filter. then go to the preset that says General Audio Cleanup. After that you go to effects again and then click amplify and set it to 150% gain....once you save it to your computer it will save as a wav file so you will need to convert it back over to an mp3 and then you should be good to go to use jailbreak's iphoneinterface
First download wavepad then open whatever mp3 file you want as a ringtone. Next edit the length of the ringtone by selecting and cutting out the unwanted parts. Once you got the the part that you want as your ringtone highlight and select the whole mp3, now heres the part to make them sound good, go up to effects and go to high-pass filter. then go to the preset that says General Audio Cleanup. After that you go to effects again and then click amplify and set it to 150% gain....once you save it to your computer it will save as a wav file so you will need to convert it back over to an mp3 and then you should be good to go to use jailbreak's iphoneinterface