This is a sample of what noise reduction you can expect by adding our windows. This demo should give you a general idea of noise reduction benefits, but we cannot guarantee you will get exactly this result. Your window, the amount of space between the windows, what type of noise problem you have and even the construction of your walls all can affect the end result. Add these to the variables of your computer and speaker system and the volume you play it back at. So please understand that this is "about" what you can expect with a standard type of installation. Demo curtesy of Soundproof Windows, located in Reno, NV.