Archive for category Product Applications

Quiet that fan… Ceiling Fan – With Vib-X

Airflow is good.  Circulating stagnant air has many health benefits, but what do you do when that ceiling fan is just making too much noise?

To start, check all the normal suspects; is it balanced, cleaned, level, blah blah blah… You’ve probably already checked these anyway.  It’s an older fan, the motor hums, because older fans hum.  If it’s vibrating through the structure, there may be something you can do to isolate that extra vibration – and at least keep the other occupants happy.

When most people think of Vib-X pads, they think of a musical function;  Isolate your speakers, isolate an amplifier, isolate a (insert name of miscellaneous musical gear here)… but there are some really useful everyday functions for this wonderful material.  Like keeping that fan from vibrating the entire house!

Vib-X the vibration eraser!

Isolate that ceiling fan with Vib-X!

The simple install may involve a contractor, or at least some one who knows electricity, so you don’t electrocute yourself… but after shutting off the power to the fan, it’s pretty quick.  Take down the fan and find the box. Disconnect the box. Cut some Vib-X to separate the box from the wood.  Cut some Vib-X squares to use as washers.  Remount the box using the diagram, a couple fender washers, maybe a couple optional grommets if you desire – then re-install the fan.

Ceiling fans are usually mounted to an electrical junction box in the ceiling, which is usually just screwed to a ceiling joist or some simple wooden frame.  By using the Vib-X to isolate the electrical box from the wood, the vibrations do not directly transfer from the fan into the structure of the house, turning that old, vibrating ceiling fan – into a breath of fresh air.

Simple.  Thought so.  Don’t forget to balance, level, and clean that ceiling fan while you’re doing all this.  Turn that power back on and enjoy the breeze.

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Model D @ DesignDC & WBWV

That’s right. Acoustics First will be unfurling some of the wrapping and exposing the newest addition to the ArtDiffusor® Family of diffusers… the Model D.  Where can you see it?

DesignDC 2013 - September 25-26, 2013

DesignDC 2013

 September 25-26th, 2013
  Walter E. Washington Convention Center, Washington DC

Acoustics First will be set up in the main exhibit hall (in Booth 507), showing off the Model D, the newest release into the ArtDiffusor® family.  Come on down to see for yourself what all the noise is about – pardon the pun.

Another interesting development is the first install of Model D’s in a Broadcast studio.  In a move to “liven-up” the very “dead” studio to better accommodate the live recording of in-studio musicians, WBWV 88.7 FM in Beckley, WV pointed to the New Model D as their solution.

The Sound, 88.7 fm Beckley, WV

WBWV 88.7 FM Beckley, WV

FInally, don’t forget that you can check out any new developments or products at Acousticsfirst.com, where the Model D page has a couple “Bonus Features”  like:

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Big Room… Big Boom.

When Pippin Barnett contacted Acoustics First about an acoustical issue he was having with a new multipurpose space that was constructed for the Sabot School, he was in desperate need of a solution.  This space was needed for functions, activities, art displays, music classes, plays, and more, but was almost completely unusable due to the acoustics.

sabot-titleThe large space was well conceived; large open floor plan, hydraulic door to open the space to the courtyard, bathrooms, storage and lots of display space for the student’s artwork and creations.  The building was also efficiently constructed using SIPS (Structural Insulated Panel Systems), which created a grand open space with no support pillars. sabot-baffleBAThis space was ready to be used, but there was a problem – whenever they tried using the space, you couldn’t  understand what anyone was saying.  To say that the acoustics were “not optimal” is like saying that the destruction of the entire universe would be “inconvenient” – an incredible understatement.

Upon arrival, we took some physical measurements of the space to calculate the surface area and volume of the room, as well as got some acoustic measurements.

Click here for a balloon pop before acoustic treatment. 

Whoa… Big Boom! What you are hearing is a 3+ second RT60 time;  That’s more than 3 seconds of time that the sound lingers in your space at a level audible enough to interfere with other sounds.

Which is “Inconvenient,” and “Not Optimal.”

So with some magic calculations performed by Joe Horner over at the quietest office in Acoustics First,(no really – he likes it really quiet,) a solution was developed to create a space that sounded as good as it looked.sabotcalc

Joe prescribed 100 2’x4′ Cloudscape ceiling baffles as well as 157 sq ft of 1″ thick Sonora Wall panels to cover the solid hydraulic door – and we listen to Joe (he’s done this a lot!)

So, a short while later, the Baffles and Panels are installed and we receive an e-mail from Pippin…

“I’d say you were right on the money!”

Click here for a balloon pop after acoustic treatment.

RT60 from 3+ seconds down to right about 1 second. I’d say that’s right on the money too, Pippin!

sabot-doorBA

The Sabot School regained the use of its space and everyone lived happily ever after.

I love happy endings.

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Then and now… Diffusers and Don Juan.

AcousticsFirstVertFour score and seven years ago (1926), movies had just begun integrating sound along with the visuals, as Warner Brothers released Don Juan – syncing a 33 1/2 rpm audio disc to the video as part of the new Vitaphone system.  The era of talkies had arrived, as did a new era of fake accents.

While we still have those fake accents from the days of yore (and Johnny Depp as Don Juan), we have new technologies to bring us our entertainment – high-definition video on big screens with 10.2 digital surround sound, playing in home theaters that rival the best public theatrical venues.

While we have seen (and heard) the technological evolution of movies to what they are today,  we have also seen (and heard) the evolution of acoustics – and the one area I’m going to discuss today is one of the fastest evolving acoustic disciplines – Diffusion.

Diffuser design has come far from the early days of scattering sound by changing the angle of your wall,  or the shape of the room to negate, dilute, or diffuse unwanted or undesirable acoustic waves.  Today, acoustic diffusers are mathematical and scientific wonders, designed to be elements that are inserted into your listening environment to create an acoustic space that is open and airy.

During this evolution of diffusion we have seen the rise of many shapes; The Pyramid, the Barrel, the Binary Arrays, Flat Panel, 1D and 2D QRDs, and more… a veritable cornucopia of geometric shapes and mathematically produced profiles, which are scientifically sound, but fundamentally, inorganic.

The notes on the instruments we play, are based on math and physics, but the music we play ebbs and flows from the pounding of drums to the smooth bass lines, from the intimate vocals to screaming, and from the heavy metal acts to classical symphonies (with or without a heavy metal act).  Diffusers have followed suit, changing their shape along with the changing industry – making advances as new discoveries are made.

Diffusers have become important acoustic treatments in listening rooms, recording rooms, sound stages, and theaters – embrace the diffusers!  Embrace the future Don Juan’s and their terrible accents… ok… just diffusers… fine.

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DIY: Back Wall Diffuser Array/Bass Trap

Getting more out of your back wall diffuser array with a simple hanging DIY array/bass trap.

One of the big “back wall” questions people have is “If I have a large diffuser array, how can I get the bass trapping I need?”  A great answer to this question is to turn the entire array into a hanging bass absorber.  If you are already planning on getting diffusion for your back wall, here is a great way to use that wall space for more than just diffusion.

Stuff you need:

bass trap foam diffuser -decon- front

Assembly instructionsbass trap foam diffuser - side

  • Screw the two IsoHangers to the plywood, using a fender washer on each screw. These should be about an inch in from each end -drill small pilot holes first. (These will be used to hang the panel, this side will be designated as the back from here on out.)
  • Use Construction adhesive to attach the Cutting Wedge® Foam to the back of the panel in a checkerboard pattern (each panel 90° rotated from adjacent)
  • Use Construction adhesive again to attach the 8 Diffusers to the front of the Plywood (Follow the installation instructions for adhesive placement)
  • Attach the Rings or Wire to the free end of the IsoHangers.

What you have created is a hanging panel that will diffuse mid-high frequencies and trap the lows.  The hanging mass absorbs low frequency energy by moving slightly when pushed by the energy of the Low frequency Waves.  The rear facing fiberglass also absorbs low frequencies by dampening the panel, but it also absorbs any of the waves that happen to get trapped behind the panel.

bass trap foam diffuser - rear

Hanging the Diffuser/Trap Assembly

  • Measure and attach the Closet Brackets to the Wall – Use appropriate anchors!  If you have standard or double wall construction without Resilient Channels, use the studs – The IsoHangers will keep vibrations from transmitting through the wall.
  • Hang the panel on the Closet Brackets using the rings/wire with the Diffusers facing you and that’s it!

bass trap foam diffuser - frontThis simple DIY project is provided as a way for our customers to learn better ways to use our products and get more value out of the products they buy.  For those customers who are planning on purchasing diffusers to make an array, or maybe already have an array and are looking to try a new configuration – this project may be what you’re looking for.

A little History…

If you embark on this little construction project, you will be constructing studio elements that have remained basically unchanged since at least the early 1970’s.  Hanging plywood wrapped in studio foam or fiberglass has been used “behind the curtains” of many of the top studios for effective bass control for over 40 years – just no one has ever seen it, as it has been hidden in walls; masked as a false wall of fabric stretched across wooden louvers!

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Acoustics First Corporation supplies acoustical panels and soundproofing materials to control sound and eliminate noise in commercial, residential, government, and institutional applications worldwide.  Products include the patented Art Diffusor®, sound absorbers, noise barriers, acoustical fabrics and accessories. Acoustics First® products are sold for O.E.M applications, direct, and through dealers.  For more information on acoustical materials and their application, please visit www.AcousticsFirst.com or call Toll Free 1-888-765-2900 (US & Canada).

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