I tried turning the audio down towards the start of the video .Did you watch the whole thing? Its at around 5 mins 30 into the video I tried fixing it, seems ok after that point. I had to be in game to find the configuration option to turn it down ,I normally would do that before hitting record but that wasnt an option here.

I dont normally stay interested in top down 2d games very long either but this is very well designed with a good story and I am intrigued enough to play it some more.