ROM Hack .SAD and SADL audio configuration questions (NDS Game)

[ShinyTetra]

Hi guys, i'm here for a project and i dont know how to create my own sound in a .SAD file, i'm so tilted for that bcause its my final goal to finish my project, i want to change the original sound file for my voice, how can i do it?

i want to transform .Waw file to a .SAD file