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Acoustics First® Art Diffusor® Model D spotted in music video for Usher’s “Rivals” featuring Future…

Acoustics First® Art Diffusor® Model D spotted in music video for Usher’s “Rivals” featuring Future…

Watch the video on YouTube here… Usher – “Rivals” Featuring Future.

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AuraGELL-O™ Bifractive Diffuser Technology!

AuraGELL-O™

Biosynthesized Bifractive Polyamide with Diffusive Biomass Technology

Acoustics First® is hankering to announce the first products made with our newly developed AuraGELL-O™ Compound. First realized by Peter Cooper and patented in 1845, this Biosynthesized Bifractive Polyamide has a “sweetness” when combined with our Diffusive Biomass Technology. AuraGell-O™ is a Bio-Polyamide compound which exhibits Bifractive properties, doubling the potency of the Biomass Diffuser Technology by carving the wave in two, thereby creating a phase cancelling stream which functions as a frequency tuned absorber.

The AuraGELL-O™ Infra-Red dissolves low-frequencies, while AuraGELL-O™ In-LIME absorbs the mid-band frequencies (Acoustics First® is cooking up AuraGELL-O™ Ultra-Violet for high frequencies).

Available in AuraGELL-O™ Barrel and Pyramid formats, you get the benefits of classic diffuser styling with the added bonus of the AuraGELL-O™ Biosynthesized Bifractive Polyamide with Biomass Diffuser Technology.

Installation is a piece of cake – Just nail it to the wall!

Installation is a piece of cake – Just nail it to the wall!

By mixing the AuraGELL-O™ products with other traditional acoustic products, you get enhancements never before considered – extra diffusion and absorption with a fruity scent!

By mixing the AuraGELL-O™ products with other traditional acoustic products, you get enhancements never before considered – extra diffusion and absorption with a fruity scent!

“We loved our AuraGELL-O™ Barrels so much – we went back for seconds!” – Angelo LeMonjello

Call Acoustics First® and get your AuraGELL-O™ Barrels and Pyramids today – because by tomorrow, they will all be devoured!

Update: Due to an outbreak of AuraGELL-O™ weevils, and massive consumer demand, we regret to inform you that this was an April Fool’s joke.

Bon appétit!

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StratiQuilt™ Before and After – Graveyard Carz!

AcousticsFirstFor our first post of 2017, we thought we’d share this video produced by our friends at Graveyard Carz! When the reality show had noise issues with their compressors while filming, they solved the problem by using Stratiquilt™ Acoustic Blankets from Acoustics First®. This video shows a before and after comparison and is a great example of the practical application of these industrial sound control blankets.

Enjoy!

StratiQuilt™ Before and After – Graveyard Carz! from Acoustics First®.

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Acoustics First® makes sound Visible!

AcousticsFirstAs many of you know, Acoustics First® invests a great deal of energy in the development of the science of acoustics.  Here are three ways that we are making advances that help people learn and actually Visualize acoustics!

Those interested in sound diffusers  have certainly noticed that Acoustics First® has produced a Diffuser Data book, containing all kinds of test data about how our diffusers contribute to the sound in your space.  This information is a great advancement and we have worked closely with the ASTM committee developing this test method. Some people wonder exactly how the test produces the data that we report, and we have developed a simulation to show exactly how the sound energy is sampled during this test.

If you download the Diffuser Data booklet, you can see a picture of the gigantic test arc at NWAA Labs which is used for the real world tests.


Acoustics First – Diffuser Data Test Demo from Acoustics First®.

We have also made leaps and bounds in using simulations to show the different ways that diffusion develops in a space.  Depending on the type and placement of the diffusers you install, the diffuse field will develop at different speeds, at different frequencies.  We can now show a couple of simulations of the development of a diffuse field to help you visualize how sound moves in room without treatment and with two different sets of diffuser treatments.


Acoustics First – Room Simulations from Acoustics First®.

Bonus video! Imagine being able to see the Untreated room and the Model D room from a different angle – To be able to move around the outside of the room and see how the sound field develops from a different perspective.  Imagine no more!  Here it is!


Acoustics First – Sound Field Development Simulation – 3D Panning from Acoustics First®.

If you prefer to use YouTube – you will find the videos uploaded at our YouTube channel here.

We hope these helped you to “look” at acoustics in a whole new way, and stay tuned – more advancements are coming soon!

Contact Acoustics First® for a high bitrate, presentation quality version of the videos – as well as permission and terms of use.

Bonus! Simulations!  Now in stereo – and with absorption! Click Here!

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Demystifying Acoustic Data: Part 2 – Test Material Mounting

For anyone new to the world of acoustics, there is a multitude of terms, coefficients and numbers that are thrown around.  This flood of information can seem intimidating, especially to beginners. In this series, acoustician Cameron Girard of Acoustics First® hopes to help you distinguish between what’s useful and what’s not.

Part 2: How Mounting in Testing Affects Sound Absorption Data

As I discussed in my previous article, the best way to compare the performance of sound absorbing panels is by referencing the Sound Absorption Coefficient (SAC) and Noise Reduction Coefficient (NRC). However, these coefficients are often used as marketing tools. Be on the lookout for companies that list absorption coefficients and NRCs without mention of a particular testing standard or mounting method. It’s vital to check for this information, as direct comparisons to competitors and other materials can only be made if their testing procedures are the same.

The sound absorption of a material that covers a flat surface not only depends on the physical qualities of the material but also on how the material is mounted during installation. The mountings specified in laboratory tests are intended to simulate conditions that exist in normal use, such as direct wall mounting and installation into a ceiling grid.

Many materials for treatment of walls or ceiling are tested using what is called Type ”A” mounting. Type ”A” mounting means the test specimen was placed directly on the test surface of the reverberation chamber. Lay-in ceiling tiles, on the other hand, are often tested using ”E400” mounting. The ”E” designates a sealed air space behind the specimen (simulating  the air gap between a dropped tile ceiling and the structural ceiling) and the number after the ”E” is the depth of the airspace in millimeters. The airspace behind the acoustic material affects the sound absorption by acting as a bass trap. The deeper the cavity behind the panels is, the lower the fundamental of the “trapped” frequencies will be.

To see what this look like in terms of actual numbers, let’s take a look at how different mounting methods effect the sound absorption coefficients of Acoustics First’s HiPer® Panel (a low-profile, composite absorber/diffuser panel).

Since the HiPer® Panel can be used effectively in multiple applications; we had it tested in accordance to the two most-common mounting procedures, Type E-400 and Type A. The results of the laboratory tests are as follows:

Product Info

Sound Absorption Coefficients

Product Name Thickness Mounting 125Hz 250Hz 500Hz 1kHz 2kHz 4kHz

NRC

1″ HiPer® Panel 1″ E-400 0.43 0.28 0.51 0.76 0.99 1.10 0.65
1″ HiPer® Panel 1″ A 0.09 0.28 0.78 0.75 0.94 0.85 0.70

 

As you can see from the chart, the sound absorption coefficient at 125 Hz varies greatly between E-400 mounting (SAC of .43) and Type-A mounting (SAC of .09). If mounting the HiPer® Panel in a ceiling grid, with a sizable airspace, you can expect significant low-frequency absorption, but mounting it on a wall (Type-A) will result in much less absorption at 125Hz.

Other mounting methods are available, but are not used as frequently. Here are some of the basic mounting designations (See ASTM E795 for more information.)

Type A mounting – Test specimen laid directly against the test surface (wall panel on drywall).

Type B mounting – Test specimen cemented directly against the test surface. Type B mounting is intended to simulate acoustical ceiling tiles or other sound-absorptive products adhered to a hard surface with an adhesive.

Type C Mounting—Test specimen comprising sound-absorptive material behind a perforated, expanded, open facing or other porous material.

Type D Mounting—Test specimen mounted on wood furring strips.

Type E Mounting—Test specimen mounted with an air space behind it (dropped tile ceiling).

As we’ve discussed, acoustical data can vary greatly depending on the mounting method used during testing. Acoustics First tries to include as much information about testing procedures as possible, because we feel an informed client makes the best client.

Contact Acoustics First for your all your sound control needs!

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