Ok, I finally made it. Thank you very much for your support @britzl and @Mathias_Westerdahl .
I’m showing a way to do it in case someone is struggling as much as I am.
For create folder in assets :
Result :
And for load the banks :
local bundle_path = sys.get_application_path()
local system_name = sys.get_sys_info().system_name
if system_name == "Android" then
path_to_banks = "file:///android_asset/banks"
bank = fmod.studio.system:load_bank_file(path_to_banks.."/Darksynth.bank", fmod.STUDIO_LOAD_BANK_NORMAL)
bankString = fmod.studio.system:load_bank_file(path_to_banks.."/Darksynth.strings.bank", fmod.STUDIO_LOAD_BANK_NORMAL)
end
If I have time I hope to do a blog with lots of tips on how to use the FMOD lib easily.