Since humidity changes the density of the air, its a pretty safe bet that transmission of sound waves formed by differences in air pressure will vary somewhat as humidity varies. The question will be how much different and whther significant enough to make a difference or not.
If you can do controlled listening tests where you are able to control the humidity and do some sort of objective listening test, you are probably in the best position to determine if in fact it is worth worrying about or not.
OF course, it can be hard to set up such tests properly where any changes heard are accountable to a specific dependent variable, like relative humidity. What if barometric pressure is significantly different? That could have a similar effect.
But relative humidity having some effect on sound is certainly a possibility FWIW, I would say. Not sure how much sleep I would loose over it though.
If you can do controlled listening tests where you are able to control the humidity and do some sort of objective listening test, you are probably in the best position to determine if in fact it is worth worrying about or not.
OF course, it can be hard to set up such tests properly where any changes heard are accountable to a specific dependent variable, like relative humidity. What if barometric pressure is significantly different? That could have a similar effect.
But relative humidity having some effect on sound is certainly a possibility FWIW, I would say. Not sure how much sleep I would loose over it though.