Good callout there. I work in an open office environment and definitely feel the pain of noise pollution from time to time. I've never heard of how companies combat the problem, so that's an interesting point. Definitely something else for us to do some research on to expand the market reach.
I love the theater/cinema idea! It would take some market research (for example, how many theaters are built yearly, how frequently do they update their sound insulation, etc) but regardless, it definitely brings in a larger market.