Why bother going to an expensive cinema when you can build your own home theatre? Install the big screen, purchase a nice receiver, and then connect a 7.1 surround system so that you’re immersed in movie action. That’s all well and good, but what about the neighbours? They probably don’t want to feel the waves of bass coming from your sub-woofer, nor the accompanying audio from all of those surround speakers.
Create a Green Glue Movie Cocoon
There’s no point having a powerful home theatre in your living room if you have to turn the audio way down. You want to hear every explosion and bone-crushing punch, as created by an action-packed movie soundtrack. What you don’t want is a loud and angry knock on the wall, followed by a neighbour’s “turn it down” shout. Straight to the point, then, a Green Glue coated room will keep that loud soundtrack inside your personal movie theatre. The energy-absorbing compound can dampen the surround sound and convert it into trace amounts of thermal energy, which harmlessly disperse throughout the walls. Having answered that key query, one asked by many keen home theatre enthusiasts, let’s see how this project will unfold.
Building the Physical Sound Envelope
If Green Glue can be used to subdue concert hall audio and auditorium noise, then it can surely be employed as a home theatre soundproofing aid. Of some concern, multimedia enthusiasts love low-frequency tones and high-wattage speakers. These are the folk who buy groups of tower speakers and subwoofers that are as large as small tables. To make sure you can give the volume knob a guilt-free twist, you’ll need to paste the viscoelastic noise dampening compound inside six different drywall sheets. The paste should be liberally spread on the walls and ceiling/floor, then a group of matching panels of plasterboard (drywall) should be placed over those walls. The Green Glue acts as a sound dampening sandwich filling between those wall pairings.
What if the movie is swapped out for a concert or a sporting event? Suddenly the frequencies change. There’s more bass and fewer midrange tones. To aid the Green Glue walls in their tough noise dampening assignment, special composites and/or natural materials replace the plasterboard. Wood, cell foam, perhaps even a layer of mass loaded vinyl, all of these alternatives offer superior frequency and amplitude filtering characteristics. Subsequently, Green Glue is the fixed member of this sandwiching trio, but the plasterboard component can vary, depending on the audio source. For home theatre soundproofing, talk to an acoustics professional before choosing the substrates.