Archive for category Video
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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Video: How Acoustical Panels Improve Sound
Posted by Acoustics First in Press Release, Video on April 6, 2011
http://www.acousticsfirst.com/acoustic-demonstration-video-how-acoustical-panels-improve-sound.htm
The awareness of acoustics has dramatically increased over the past ten years. With this awareness, the access to the information on the Internet has also amplified. How does one begin to decipher all of the publications that are now available in magazines and on the World Wide Web? During your research, you may have heard of comb filtering, standing waves and room modes. What do these terms mean and why should I need to know them to understand acoustics? Without using a lot of math or complicated acoustical terms, Acoustics First has produced a video to demonstrate how acoustical panels improve sound within a room. This five-minute demonstration will help you understand that acoustical materials change the physical dynamic of the room to affect sound, in a way that cannot be achieved with electronics.
This video is available under the “Resources” section of our website or at www.acousticsfirst.com/video.
How Acoustical Panels Improve Sound (Phase Demonstration) from Acoustics First on Vimeo.
Soundproofing: Using Multiple Materials to Acheive Sound Isolation (Video)
Posted by Acoustics First in Press Release, Products, Video on March 16, 2011
Soundproofing: Using Multiple Materials to Achieve Sound Isolation (Video)
When attempting to soundproof a room, there are various levels of sound isolation and many different types of materials available. How far you go with your construction will depend mostly on they type of sound you wish to abate. The acoustic solution needs to be designed around your specific application. Is it the noise of an industrial plastic shredder or speech from an adjacent office? (alt. Is it the noise of a neighboring industrial plastics shredder or do you need to isolate your studio control room?)
A typical wall construction consists of two layers 1/2″ gypsum applied to either side of a 2×4 wood or metal stud. Many of these walls for residential and commercial interiors will lack insulation in the cavities. This type of contruction will yeild an STC (Sound Transmission Loss) around 31 – 33. By simply adding a layer of fluffy glass fiber insulation to the cavity, the STC will increase by 4-5 points and prevent sonic resonance. Additionally, a layer of mass loaded vinyl barrier will add another 4-5 points. We have prepared a simple video demonstration to illustrate how using multiple layers of common building materials will improve STC values. Click here for the video: http://www.acousticsfirst.com/educational-videos-the-barrier-and-the-bell.htm
The Barrier and the Bell (Soundproofing Demonstration) from Acoustics First on Vimeo.
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