Ok, good. I am not there yet; I still need to figure out how to make relatively complex graphic effects and animations (I am working on porting Sir Crocodile as a full-fledged character right now, and want him to transform into sand for some attacks), but knowing how to add voices will definitely bring the character alive. Thanks a lot!

Good luck and be sure to ask people in the forums that work with the graphics and animations.

You are able to add sounds? Interesting. How?

Used sawndz 0.12 and smash attacks

With sawndz 0.12 you can easily change a specific voice/sound effect. Some people ripped the voices and they have a specific number. pit's wave ID when he's sent flying is wave 17, so i change group id A then specify im gonna change one of his voice clips which is 1df. Then just put 17 in the wave ID and insert a wav. file.

And then to make the character stop being silent you open smash attacks, open the fitpit.pac
If you'd like to add voice with waluigi's win1 animation you look for it there and change events to sfx. Now you click add and where it asks you what it should do, you type 0A050100 and in parameter you type in 02C4, which is pit's win2 sound effect (waluigi just dances in win2, so I can replace pit's wave 26 with another waluigi wav.) you can use an asynchronous timer for it to start certain frames after the beggining of the animation or not if you eant it to start as soon the animation starts.

Long explanations but it is not that hard. Also, to know which sound effect you want to use with smash attacks you'll need this reference from the great dantarion http://pastebin.com/f635MwL4 .

I was able to put some sound to waluigi (only the ones when he's sent flying up and when he falls), I want to try modyfing waluigi a bit to be able to have voice when he wins as well as when he taunts, but with the permission of the creators , of course.