Place the mod file at following directory:

"C:\Program Files (x86)\Steam\steamapps\common\TEKKEN 8\Polaris\Content\Paks\~mods"

Create "~mods" folder if there is not. Creating this mod took my 10 days as there were 312 voice files overhauled in it. As a demonstration, I leave a link of a video that I used this mod in a fight at section.

https://www.youtube.com/watch?v=X-8yvIP8xRw&t=42s

R.I.P. Daisuke Gōri (The Voice Actor of Heihachi from Tekken 3 to 6 in the mod)