Typically, these acoustic fiberglass panels are available in 2-feet x 4-feet (or 2-feet x 2 feet) sizes and are about 3/4-inch thick. If you don’t use the acoustic fiberglass panels, it won’t attenuate the proper frequencies. Must use acoustic fiberglass material: It’s critical to use the right type of acoustic fiberglass for it to be effective. I thought panels on the ceiling would be ugly so I skipped it. A few of my panels don’t have fiberglass in them. Note that I didn’t cover the ceiling at all in my room.the front center and front right channel sound like they are coming from the same spot.) So some natural echo, but not so much that all of channels start to blend together and can’t be easily localized to a certain region of the room (i.e. You want some reflections scattered around the room. However, you don’t want the room completely dead. To get the best acoustic performance, you’ll want about 60-70% of your walls and ceiling covered. A home theater room needs to have about 60-70% of the surfaces covered in acoustic absorption material.So it’s more like a performer on a front stage using the acoustics of the concert hall to amplify and fill the space with sound (not speakers in the rear of the room.) This works great for music, not so great for movies, where the sounds behind you are supposed to be quite different from the sounds in front of you. 2-channel stereo music setups requires a much more lively room with minimal acoustic damping to create a natural echo.If you want to listen to 2-channel music in a home theater room, you’re much better off using a surround sound mode (such as Dolby Pro-Logic II Music) to recreate the echo effect of a concert hall, rather than having a home theater room with lots of echo that doesn’t work well for movies. If there is too much echo in the room, there is no localization of any of the audio channels and everything get muddied and mixed together, and the advantages of separating sound into 8 (or more) discrete channels is lost. Home theater setups requires a lot of acoustic damping and relies on multiple speakers to create the sound effects throughout the room.This article focuses on Home Theater Room design tips. It’s impossible to design a room to sound great for both 7.1 channel home theater configurations as well as for 2-channel stereo music configurations. Can’t design for both 7.1-channel home theater and 2-channel stereo music.(There is a completely different set of requirements for a sound isolation setup, see the section below for details.) It is not to reduce the amount of sound heard outside of the room. Primary Purpose is to Prevent Echos: The primary purpose of acoustic room treatments is to prevent echoes within the listening room.Acoustic Treatment Rules of Thumb for Home Theater Rooms Read them over, figure out what you think you might incorporate into your room, and go from there. So the list below is intended to be a “menu” of options from which you can choose what best fits your needs. It’s almost impossible to get an absolutely perfect room configuration you always have to make practical compromises. But if you want the best sound quality possible, room acoustic treatments are an absolute necessity. And I can’t blame them, because it’s a lot more fun to shop for electronics than it is to spend hours messing with acoustic room treatments. Unfortunately, room acoustics is usually the area where most people give the least amount of attention. Not the brand of speakers, not the receiver, not the bit rate of the movie soundtrack. The single most important factor of a great sounding home theater is the acoustic properties of the room itself.
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