Found this thread looking to reduce room background noise.
@ willemj1
Were you ever able to lower below 35dB? Measured yesterday and that is about where I am at. This is making sure the HVAC system is not running, but that is easy enough to accomplish for an hour or two. Didn't do anything special when building our house, though home theater is in the basement (fully buried to about 3/4 buried in back). There are only two of us so running water isn't a big issue, haven't tried unplugging the fridge to see its' effect but it is a fairly new quiet unit.
@ willemj1
Were you ever able to lower below 35dB? Measured yesterday and that is about where I am at. This is making sure the HVAC system is not running, but that is easy enough to accomplish for an hour or two. Didn't do anything special when building our house, though home theater is in the basement (fully buried to about 3/4 buried in back). There are only two of us so running water isn't a big issue, haven't tried unplugging the fridge to see its' effect but it is a fairly new quiet unit.