Acoustic Forum

Welcome to NetWell Noise Control's interactive Forum on soundprooofing.   This discussion board is open to all visitors to our website as we encourage clients and prospects to share questions and answers pertaining to their treatments.  Open any of the product categories to the left to join in or start new conversations, or ask questions.   Select from the topics to the right to source articles from our Journal logs posted below.   Questions?   Call our help desk at 1-800-638-9355.


Solving Noise & Saving Money

Rooms that fill with excessive echoes include restaurants, gymnasium, sanctuaries, fellowship halls, daycare centers, cafeterias, multipurpose rooms, offices, conference rooms, band rooms, and more.   The echoes from noise reflecting off perimeter surfaces in the room combine to build unwelcome levels of background noise.   As a result, the room is unfriendly, and often times un-useable.   To offset the echoes, and return the room to premium sound quality, a set of sound panels can be surface mounted within the room.   These panels will capture and convert the echoes out of the space, delivering premium sound back to the room.

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How to Lower Cafeteria Noise

Loud cafeterias are filled with loud kids.   While there is no remedy to lowering the noise any one child puts out, the noise in the room can certainly be better controlled.   Lowering noise levels in a cafeteria is all about controlling the ambient echoes in the room.   As the kids produce noise, their voices reflect off perimeter wall surfaces, and redirect back into the room.   As these echoes continue,

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Do Sound Panels Block Noise?

One of the most mis-understood aspects of the soundproofing business is clients that call asking for sound panel treatments to help block noise bleeding from one room to the next.   The reality is, sound panels do not block noise.   Sound panels absorb echoes.   Sound panels will produce lower background noise within the same room the noise is generated in (like a loud restaurant), but sound panels do NOT block noise from bleeding to the next room over.   Think of a flood.  Sponges won't block noise, but sand bags will, right?   Well the same holds true when blocking sound waves.   Sound panels are sponges.   To properly block noise from bleeding to the adjoining space, there are "barrier" treatments featuring a product called dB-Bloc that are designed to block noise.  So yes, it can be done!  But no, not with sound panels!   Call for help to NetWell Noise Control at 1-800-638-9355 or visit them online at!



Why Are Restaurants So Loud?

Architects, Designers, Builders and Restaurant Owners combine to target wipe-able, cleanable, decorative surfaces in their restaurant projects.   These surfaces can include brick, block, wood, glass, tin, marble, granite, stone and metal.  On average, these surfaces combine to absorb an average of 5% of the sound wave reflections inside the restaurant space.   That leaves the dead air in the space responsible for slowing down the echoes, which doesn't work all that well.   Echoes can carry for up to 10 seconds in restaurant settings, while human ear's threshold is 2 seconds or less before the echoes begin to cause acoustic problems.

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Soundproofing Basement Walls

The outer walls in most basements will be concrete block or poured cement.   The inner walls defining the rooms in a basement will be wooden stick frame.   Four walls, two concrete, two wood frame is the standard starting point for a client attempting to hold noise to within a room in the basement.  The room might be a home theater, a drum rehearsal space, a bedroom or a furnace room.  Regardless of the noise source, if your goal is to contain the noise, don't ignore the walls.

Treating the ceiling for sound bleed is important, yes.   The layering sequence of anchoring mass loaded vinyl and a resilient channel system to your ceiling prior to your drywall can knock out up to 90% of the sound bleed.  The key mistake most clients make is ignoring the walls in a basement, thinking that they don't see the need to isolate sound bleeding through the walls.   But what they fail to recognize is that the walls become a carrier for the vibration, pulling structure born sound upstairs, circumventing the ceiling treatment.

So to properly soundproof a room in a basement, don't ignore the walls.   Layer the same mass loaded vinyl treatment to the walls as you do to the ceiling, and for the collapse of the connection points, and thus the collapse of the noise bleed.   For more information on this treatment, see the dB-Bloc section of a website  


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