Replacing character voices in P:M

[OmegaMalkior]

I saw that Roy's and Mewtwo's voice have been inserted or edited in without the use of the large file that contains all of the cast's voices and sound effects. I tried to just insert .sawnd files into a folder with other sawnd files thinking it's the voices, but I've had no results. Anyway to do it correctly?

[TheDarkMysteryMan]

Remember this:
Mewtwo's SFX is 323 (which replaces Galleom.)
Roy's SFX is 325 (which replaces Duon.)

Now for the rest of the cast:

Mario Sfx is 8.
Link's is 9.
Pit is 10.
Metaknight is 11.
Dedede is 12.
Donkey kong is 13.
Samus and Zero Suit Samus are both 14.
Yoshi is 15.
Kirby is 16 (his hats are 48.)
Fox is 17.
Pikachu is 18.
Luigi is 19.
Captain Falcon is 20.
Ness is 21.
Bowser is 22.
Peach is 23.
Zelda and Shiek are both 24.
Ice climbers are 25.
Marth is 26.
Game and Watch is 27.
Falco is 28.
Ganon is 29.
Wario is 30.
Olimar is 31.
Lucas is 32.
Diddy kong is 33.
Pokemon trainer (just him) is 34.
Charzard is 35.
Sqruitle is 36.
Ivysaur is 37.
Lucario is 38.
Ike is 39.
R.O.B. is 40.
Jigglypuff is 41.
Toonlink is 42.
Wolf is 43.
Snake is 44.
Sonic is 45.

Remember when you get a Sfx for a Character, rename it to the number they equal to (the numbers on top.)

Hope this helped