Step 8Convert it with bitpim.
iImage Information

you should now have the convert audio file dialog open. under new type, select mp3 (default), you can make the sample rate whatever you want, i use 24000 hz since it sounds good, and since you won't be able to tell if it's any higher with the crappy speaker (and i don't know the maximum my phone can handle). select one channel as you'll only be able to hear one, and it saves space. the bitrate can be whatever you want. the higher it is the more space it will take. if it's a short sound (like a 22 second clip) you can afford some reasonable quality. 40kbps sounds just great at 24000 hz mono. click convert. now play it, see how it sounds, if you don't like it, change the options and do it again. i recomend increasing the gain (volume). careful, it may cause over modulation. (if you don't know what it is, set the volume realy high and play it!!!) check the amount of space left on your phone and see if the new ringtone will fit. (menu>get it now>info>memory) if it's all in order click ok.