Please ensure Javascript is enabled for purposes of website accessibility

Tagged with 'soundproofing'

Soundproofing or Sound Absorption?

Many times at Audimute, we'll hear from folks who need help with "soundproofing." Their office is too echo-y, there's some high-frequency sound in their restaurant, they want to be able to hear their drums, etc. All completely valid acoustic concerns; except the solution they're looking for isn't soundproofing; it's sound-absorbing. 
 
At Audimute, we do both (more on that later). But let's delve into what those terms really mean. 
 
Soundproofing has become the easy, shorthand term for any kind of sound management solution, but it really only speaks to a specific kind: the total containment of a room or space so that no sound is getting in or out. 100% soundproofing is possible, but it can result in an acoustic environment so tightly regimented that it ceases to be comfortable (check out anechoic chambers for more).  
 
Maybe you don't want 100% soundproofing, but you do want to block some sound from getting into or out of a space. There are plenty of scenarios where where that's the case: 

  • You live in a house next to noisy train tracks
  • You own a loud rock venue and don't want your sound to bleed into the quiet coffeeshop next door 
  • You live in a house next to noisy train tracks and a loud rock club 
  • You own a loud rock club located inside a house next to a quiet coffeeshop by train tracks

...You get the idea. 
 
Soundproofing – in the truest sense - requires new construction: tearing up a wall, adding a false floor, etc. It requires a significant amount of time, money, and labor. In short, it can be done, but it calls for a lot of commitment.
 
Sound absorption, on the other hand, is the use of mounted products such as acoustic panels to absorb echoes, reverberations, and mid to high frequencies within a room (We often tell people to think of sound waves as water and a sound-absorbing acoustic panel as a giant sponge soaking up those sound waves). There's installation involved with sound-absorbing panels, but likely no construction. 
 
Let's futher explore the difference between soundproofing and sound absorption with some real-world scenarios featuring our friend, Audie: 
 
Audie wants to drum loudly in his home studio but he doesn't want to disturb his neighbors. 
Audie needs a soundproofing solution. (Like our Peacemaker® Sound Barrier – 3mm). 
 
Audie is drumming but his drums sound muddy due to echoes in his home studio. 
Audie needs a sound-absorbing solution. (Like our Sound Absorption Sheets). 
 
Here's another one: 
 
Audie's clients at work have a hard time hearing him during conference calls due to reverberations in his meeting room. 
Audie needs a sound-absorbing solution. (Like our Fabric Acoustic Panels). 
 
Audie's desk at work is constantly rumbling and shaking due to vibrations from the parking garage downstairs. 
Audie needs a soundproofing solution. (Like our Peacemaker® Soundproofing Underlayment – 6mm). 
 
One last one: 
 
Audie wants to drum loudly in his home studio but he doesn't want to disturb his neighbors AND he wants his drums to sound less echo-y in his home studio. 
Audie needs a sound-absorbing AND soundproofing solution (Like our 2-in-1 isolé® Sound Barrier Sheets). 
 
In summation, when it comes to soundproofing vs. sound absorption, here's a nifty little rhyme to help you remember the difference: 
 
If loud noise is coming through the walls, floor, or roofing 
Then the solution you want is soundproofing
But if echoes create distraction and distortion, 
Then the solution you want is sound absorption
 
Ready to discover your sound-absorbing or soundproofing solution? Contact our Acoustic Specialists for a free acoustic consultation

Emile Berliner

While we celebrate 20 years of acoustic solutions at Audimute, we also want to celebrate the legacy of those who came before us. Today, we're highlighting the contributions of Emile Berliner.


Today, Berliner is best remembered as the inventor of the gramophone and for his groundbreaking work in helicopters and rotary engines. But he also had a lifelong interest in acoustics, which prompted him to develop the Berliner acoustic tile in the 1920s (below).

 


As one newspaper explained it at the time, Berliner's acoustic solution called for a room with poor acoustics to be "covered with hollow paper discs covered with thin wires to hold their shape. These are what Dr. Berliner calls 'sound sponges,' the principle being to absorb sound waves, preventing reflection." These discs were then concealed by a layer of specially made porous cement.


Berliner unveiled his concept for the first time at a meeting of the American Institute of Architects on October 8, 1925. Soon after, in February 1926, he received U.S. Patent No. 1573475 for his acoustic tile concept:


After another year of testing, Berliner gave the first public demonstration of his 'sound sponges' in February 1927 at the James F. Oyster School in Washington, D.C., during a lecture in the institution's 3,700-square-foot assembly hall by Lieutenant Benjamin H. Rigg, a member of the 1925 MacMillan Arctic Expedition. The results were immediately apparent: Lt. Rigg could be heard clearly, without echoes or reverberations distorting his speech. 


Word spread quickly. Soon after, Berliner installed his "Resonant Walls" at Drexel University, the New York Cotton Exchange, and even the board room of a financial institution in India.

 

 


Sadly, just as his work in acoustics was starting to find an audience, Berliner passed away in 1929 at age 78. It's unclear if "Berliner's Resonant Walls" continued to be installed after his death. 


(Images courtesy of Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division & the United States Patent and Trademark Office)

FAQ: Ways to Soundproof a Kennel

Q:           We are looking for ways to soundproof a kennel we run in Westchester, New York. Our ultimate goal is to acoustically treat the room enough to stop sound transfer from the animals into neighboring businesses. We have done some research into Noise Reduction Coefficient (NRC) and are interested in the highest NRC rating we can find. What are the sound absorption ratings of Audimute products that would be best for us?

A:            You are on the right track looking for solutions with high NRC ratings.  A lot of animal lovers come to Audimute looking for ways to soundproof a kennel, apartment, or home because of our sound absorption ratings. In a situation like this where the concern is loud, reflective noises like barking and ways to stop sound transfer, your solution is adding soft materials to the walls. The kennels we have worked with have found our absorption sheets, eco-C-tex™ panels, and fabric acoustic panels are the best ways to do this:

Audimute Sound Absorption Sheets have an NRC of .65, meaning they absorb about 65% of the sound. Because of their size, absorption sheets also help to cover more surface area, reducing a greater amount of hard reflective surfaces.

• Eco-C-tex™ AcoustiColor™ flexible design acoustics have an NRC of .95, making this material a more effective option over the sheets. We’ve expanded the size and color options of our eco-C-tex™ line – and even include shapes and letters – making it easy to treat spaces of any size, and ceilings if needed.

• Fabric Sound Panels have an NRC of 1.0, absorbing 100% of the sound that hits them, and come in a few options. Original metal framed fabric acoustic panels are great to install in the first point of contact, meaning where the first place most of the sound hits the wall, to break up the hard surface. In a space such as a kennel you may need a larger, full coverage application, which is exactly what our new frameless fabric panels are designed for. These panels butt up next to each other for large scale, high traffic applications. These make it easy to build up your acoustic treatment until you reach your desired result, and can put on the ceiling if necessary.

Each of these products works by soaking up the majority of mid to high range frequencies, echoes, and reverberation before these sounds have a chance to transfer through your shared wall space. Our panels and sheets are hand crafted in the USA from fire rated, eco-friendly materials. Please keep in mind that they are not specifically designed to get wet, so we recommend placing them above crate level in the upper half of the wall.

Stop looking for ways to soundproof a kennel and take charge of your sound and space today by ordering your frameless soundproofing fabric panels. If you would like to discuss your space and the best acoustic approach, call an Acoustic Specialist today at (866) 505-MUTE for personalized advice, no strings attached.

How and When To Use isolé®

You know you have a sound issue. However, you're not sure if you need to block or absorb the sound. Sound absorption and sound blocking are two very different principles. Using sound absorption in a space will help to improve the sound quality by limiting sound reflections, reducing echo and reverberation. Sound blocking, on the other hand, will help to ensure that sound is not traveling through any shared walls, floors, or ceilings. Most acoustic problems can be treated by utilizing either sound absorption or sound blocking. But what do you do if you need both? That’s where isolé® comes in.

Originally designed to block sound traveling through shared hotel room doors for The Ritz-Carlton, isolé is a two-in-one sound solution, providing elements of both sound absorption and sound blocking. Each isolé consists of a layer of our eco-C-tex sound absorption material, along with a layer of our Peacemaker® Sound Barrier, which is a recycled tire rubber barrier designed to block sound transmission. Isolé’s 36” x 82” size should be perfect for most door applications.

Although isolé was designed specifically for doors, its applications go far beyond just door treatment. Isolé can be a perfect option for window treatment. The layer of Peacemaker included in the isolé will help to provide mass and density to a window. Three metal grommets make installing isolé over a window a snap!


Isolé can also be an effective solution for rehearsal spaces. Using isolé on any shared walls will help to reduce the amount of sound exiting your space, while also improving the sound quality inside your rehearsal space.

If you have any questions about isolé or treating your space, please feel free to fill out an online analysis form, or contact any of our Acoustic Specialists!