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.

Tuesday
Jul082014

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 www.controlnoise.com!

 

Tuesday
Jun032014

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.

Click to read more ...

Tuesday
May272014

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 www.controlnoise.com.  

 

Friday
May232014

How Expensive is Soundproofing?

The answer to this is dependent on the size of your room.   The larger the space, the more square footage of product will be needed in order to trigger the sound values you are after.   We are careful to not under treat the space and force a decay in your results.  A simple Room Analysis can be performed to help calculate the coverage appropriate for your soundproofing treatment.

The answer is also dependent on the frequency of the noise source.   The lower the frequency of the noise is (low bass noise such as guitars, drums, engines), the thicker the panels should be to properly attack the low frequency sound.  The thicker the panel, the more expensive the square foot price.

So room size, and noise source frequency, will both combine to produce the calculation required for you to meet your soundproofing objectives.   Once your noise source and room dimensions are defined, a quick calculation can be run to determine your coverage needs.   For more information on calculating your soundproofing project costs, call NetWell Noise Control at 1-800-638-9355 or complete their Room Analysis Worksheet online!

 

Wednesday
May142014

What is a Sound Panel?

Sound Panels Absorb Echoes to Reduce NoiseThe term "sound panel" is generic, and can refer to a variety of different types of panels designed to capture echoes.   Sound panels are made of either foam or compressed fiberglass.  Foam panels are filled with tiny pores that accept sound waves, while fiberglass panels are filled with tiny fibers that also capture the sound wave.   With either panel, it is friction that occurs when the sound wave enters the panel system.   The pores, or the fibers, will begin to vibrate against one another as the sound wave enters into the material.  As a result, a mild form of heat is produced, caused by this friction.   Thus the sound wave energy is converted to kinetic energy, and only a portion of the sound wave that "enters" the sound panel will actually survive and reflect its way back "out" of the panel.    With the physics that take place, panel systems are wall or ceiling mounted in a loud room to soften echoes, reduce background noise, lower sound wave reflections, and deliver greater clarity to the original sound produced in the room.   From loud restaurants to recording studios, home theaters to gymnasiums, conference rooms to classrooms, sound panels serve as a key tool in generating more favorable listening environments.   For more information on sound panels, call NetWell Noise Control at 1-800-638-9355 or visit them online at www.controlnoise.com

 

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