I'm also a fan of audio dramas! 0w0 That's pretty cool that you were able to get this done even with money constraints on top of time ones. And to be honest I think if you wanted to do a longer horror game with this voice-acting centered idea you'd find a good audience for it, I haven't seen a lot of other games exploring it.
DX aaah the times when we only notice something afterwards. To be fair it was alright and did convey the passage of time the first time around for me, it was just the fact that I couldn't skip past the pauses that made it harder (I also kept getting the code wrong at first because I was inputting the letters in the order the game showed them to me, so a lot of the rewatching was my fault XD)