k2ren I would suggest you check to see if something else is the cause as I've never had any audio problems with the game. I am curious due to your review as to what else you are having problems with since you gave the impression there was more wrong than just audio for yourself.
If I may suggest so, try running the game on an virtual machine if you don't have another computer/laptop to attempt to fully rule that it the game has a problem which somehow only affects you currently. (Note that game hasn't been updated since 2020 and an audio bug this big would have probably been fixed between then and now)
i tried a lot of stuff. only affecting me is impossible it has to affect a wide range of people.i have windows 10, gtx 1050. idk what else can be a problem, i even tried to open it with local emulator japanese even though it's unity.
game already comes prepatched now. so imo the person who did the patching and upload probably did a mistake.
menu sound is ok and initial voiceline of heroine works. then actual game starts and music/sounds stop. i suggest others downloading it again and trying it out, im pretty sure more ppl will have this problem, i dont have anything special on my computer to make me stand out in not working only for me.