Tips to "fixing" audio on some "mmd hentai video"

np305

Newbie
Nov 5, 2019
68
25
Sorry if my english is still not good in common standard. so i make it to point now, there some mmd hentai video that i like from iwara.tv artist creation, but some of them is well don't have sound and i don't much like beat-ups music. so i plan to put "propper' audio on thoose video manualy by using video editor, anyone have already experience doing that ? any tips ? oh yeah this one example: