I was able to win but am still a little confused on the win condition (spoilers:)
I entered the audio recorded code into the regular keypad after which a message popped up that was too fast to read, so I was unsure what to do, I went into the mirrored room and entered the code backwards. After a moment a new code appears on the screen and I entered that one into the regular keypad and it said I won. What did the message say that was too fast to read?
Otherwise it's a well polished experience with cohesive visuals and interesting mechanics, good work!