I was having issues to use the microphone samples because my version of the desmume is 0.9.12

when I opened it since I didn't used it for months the error popped up saying unable to read mic sample, I had a .wav file for desmume to use mic sample with the hotkey but for an odd reasons, it doesn't show files in soundsample folder with the program. I do not know how to fix it

if I have to use old version of desmume before 0.9.12 that would be fine