Posts Tagged acoustical diffuser
Binaural Bob Returns!
Posted by Acoustics First in Absorption, Diffusion, Offices, Product Applications, Products, Uncategorized, Video on April 5, 2018
Back in the summer of 2015 we had a good time stuffing a bunch of our Model D Art Diffusors® into an empty storage closet and making a bunch of racket. The results were recorded, with the help of our friend Binaural Bob and the resulting data provided some interesting insights.
Well, Binaural Bob is back! This time we had a larger room than before (10’x9’x8’), and experimented with wider variety of sounds and treatment options. While this is obviously not the same as a controlled laboratory test, it does have a certain ‘real world’ flavor that’s relatable.
For best results, turn off any compression/effects and listen on headphones.
Reference Sounds played through speaker
Ye Olde Balloon Pop Test! (Calibrated 12″ Shiny Red Latex Party Balloons!)
WARNING! BALLOONS ARE LOUD – TURN IT DOWN!
Comprehensive Diffuser Data Now Available!
Posted by Acoustics First in Company Information, Diffusion, Press Release, Products on February 16, 2016
3D Polar “Balloons” are used to display a full hemispheric acoustic level response, at specific frequencies, in front of the diffusive surface. This is how a 5000Hz signal would reflect off an Art Diffusor® Model D: If we could see acoustic energy, this is what it might look like!
Acoustics First® has long been at the forefront of many exciting developments in the world of sound diffusion. In the spring of 2015, we created a method to evaluate sound diffusers using particle computer simulations. Then we utilized 3D printing technology to streamline the development of new diffuser prototypes. Recently, we received a patent for our innovative Art Diffusor® Model D design. Now we’re excited to announce the release of a new comprehensive data booklet for our entire line of sound diffusers!
In essence, this booklet represents an entirely new way to view and compare sound diffusers. “With technological advances accelerating at a staggering rate, we believed it would be advantageous to compile all of the measurable acoustic parameters of these devices, in order to develop an operating profile for each.” Since sound absorption and sound reflection can both be measured with great accuracy, we foresee a use for this data, or similar data, in virtual acoustic room modeling, along with other useful applications.
Contact us for your own print copy of the Acoustics First Diffuser Data booklet (or click here to download the PDF). The electronic data that was used to create the polar diffusion balloons is also available per request (Data compiled for Acoustics First by NWAA Labs in Elma, WA).
Currently, we are working closely with other members of the industry in an effort to develop a universally accepted standard for testing sound diffusion. In the absence of such a standard, Acoustics First is presenting this data in good faith as we believe it represents the best of what is currently available.
We look forward to sharing more advances in the field of sound diffusion!
Acoustics First Sound Diffusion Demonstration Video
Posted by Acoustics First in Diffusion, HOW TO, Press Release, Product Applications, Products, Video on November 6, 2012
Acoustics First has just released another in a series of videos to help explain acoustical principles using simple, easy to understand video demonstrations. This latest demonstration tackles the mystery of acoustic sound diffusion. Using an array of ping pong balls to represent sound visually, this video simply demonstrates what occurs when sound strikes the surface of an acoustic diffuser. First, you will see what happens when sound hits a flat reflective surface with no acoustical treatment. 
The balls all bounce at the same time and in the same direction. This represents what happens to the sound when it hits a flat reflective surface like a wall. Then you see what happens when sound hits an acoustic sound diffuser. You will immediately notice the energy of the wave of balls is scattered in all different directions as well as deflected at different time intervals. Diffusers, disperse or scatter the sound like crowd control, preserving the sound to maintain sound clarity without destructive interference. This is the basic principle behind acoustic sound diffusion.
Click here to view the demonstration: DIFFUSING / SCATTERING SOUND: Sound Diffusion Explained
DIFFUSING / SCATTERING SOUND: Sound Diffusion Explained from Acoustics First on Vimeo.
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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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