Objects with mass are the only way to effectively prevent unwanted noise from entering or exiting your home studio or home theatre. Sound absorbing objects are necessary to dampen the sound waves and interrupt their transmission. Some common objects used include installing a second wall, heavy curtains, soundproof windows, and fabrics such as wool. Acoustical blankets can be attached to the walls, creating the same effect.
How acoustical foam works
This material is used to help the sounds within a studio, not to soundproof the room. It is often used by people creating a home studio or home theater for better sound within the room. For best results, it must be spaced properly. Spacing of at least two inches away from the wall is the best for increasing absorption. A wood frame is most commonly used for attaching the foam.
Foam works best for absorbing high and mid frequency sound waves. Low frequency sounds are more difficult to absorb. These products are rated based on the lowest frequency they are capable of absorbing. This range is based on the thickness of the foam.
Thicker foam is more absorbent and more effective for a wider range of sound...
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