How to customize every sound in emulationstation action?

Hello, newcomer here.
Sincerely wants your help about my topic, I believe that not only me who wants the answer for that, So please teach me how to solve this topic Sir/ Master/ Shifu/ Senpai/ anyone who could help.

I use retrobat, cause in emulationstation stable version. not only the theme doesn't have sound whatsoever, some epic themes with sound only applicable in retrobat, emuelec, etc except emulationstation. dunno why, maybe i'm not doing it correctly that the sound doesn't come out.

so in my case now, as my topic says, I want to customize the sound of the system make, such as the background music while we selecting the game system, or the scrolling sound, back and launch or etc etc...

I believe there will be the answers that i'm looking for.

Thank you for your attention.

Hi,
I'm "man-guessing" but I think what you are looking for are in the config files of the themes. If you have individual xml files for your separate system I believe you can change the path to sounds however I have not done it myself. I change it for general purpose only and not system wise.

Yep, i think also that you should have a look to some existing theme (you got some of Hel Mic here, and see if you can find some .wav file inside (or any sound file extension), and then look in theme settings if you find the same sound name, and how it is articulated