Archive for category HOW TO

Project: Beginning to End – Biltmore Park Clubhouse

Occasionally, we get the opportunity to show the entire process that goes into a project, and today we have one which we will run through – beginning to end.

Biltmore Park clubhouse was getting a full aesthetic and acoustic makeover. Acoustics First® was asked to collaborate with Harmony Interiors on the acoustic panel recommendations for this project. After an initial consultation, a layout was developed that would attain the desired effect.

Along with this layout, a pre and post treatment acoustic performance was predicted and supplied.

Biltmore Park Clubhouse Acoustic Calculator
The prescribed treatment should take the reverb time from 2-3 seconds down to around 1 second.

After the treatment was approved and ordered, the panels were manufactured and supplied to the customer for install. This installation included several Sonora® panels for the ceiling, and others for the walls. After the customer received the order, Harmony Interiors began the installation.

Installing z-bars to the Sonora® panels
Z-bars are mounted to the Sonora® panels to facilitate hanging.

Installing the wall bars using a template.
Using a cardboard template to help mark the wall bar locations, the mating Z-bars are installed to allow the Sonora® panels to be mounted easily.

Sonora panel is hun on the z-bars
The Sonora® panels are hung by mating the z-bars on the panel with those on the wall.

Installed ceiling section of Sonora® panels
Ceiling sections are installed using the initial layout as a guide.

completed ceiling install
Final configuration of the panels when completed. (Upper room and ceiling.)

Sonora® panels installed on the lower walls.
Sonora® panels installed on the lower walls of the clubhouse.

BONUS! This is often all the information we receive… along with some comments about how great the room sounds. But on this occasion, we were able to obtain a full before and after comparison of the effects of the treatment!

Video of the room – pre and post treatment!

The Harmony Interiors installation crew had the foresight to shoot a bit of video highlighting the sound of the room just before and immediately following the installation of the Sonora® panels. This is certainly an ear opener!

The second benefit of getting this before-and-after comparison video is that we were able to critique our initial predictions of the pre- and post-treatment reverb times.

actual reading of before and after RT times
The analysis shows a pre-treatment RT-60 of about 2.4 seconds and a post-treatment RT-60 time of roughly 1.2 seconds. This is right in line with the performance predictions that were calculated in the very beginning of the consultation!

We hope you enjoyed seeing this acoustic project from the initial consultation and layout phase, through the installation, and to completion.

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John Bullard Live Room – Tuning a Live Room for Classical Banjo

When you think of classical music; what instruments come to mind? Piano? Violin? Cello? …What about Banjo?

In the summer of 2022, classical banjoist John Bullard reached out to Acoustics First for assistance with his newly renovated home-studio. John is one of a select group of classical musicians aiming to showcase the versatility of this uniquely American instrument.  The banjo, with John’s expertise, lends a very distinct, melancholy sound to contemporary and traditional compositions.

Having recorded a number of albums already, John knew he wanted his live room to be catered specifically to tracking solo, classical banjo as well as small acoustic ensembles. Acoustics First analyzed John’s live room and came up with a treatment design that would achieve an “ideal-as-possible” acoustic environment for recording classical instruments.

The largely reflective live room had walls comprised of unfinished, reclaimed wood planks over plywood, a drywall ceiling, stone fireplace and a polished concrete floor. The parallel, hard surfaces contributed to a poor tracking environment; with standing waves and “flutter” echoes adding unwanted coloration to recordings, inhibiting music definition. 

Spaces used for rehearsing and recording classical music often benefit from elevated levels of reverberation, which add a sense of warmth and ambience to acoustic music.  Although the reverb in John’s untreated room was only slightly excessive when measured, it was far from “diffuse”, with the majority of energy coming from early reflections.

The primary challenge in the live room was to address the early specular reflections and standing waves without taking too much “life” out of the room. To achieve this delicate balance, wide band diffusion was recommended as the primary ceiling and wall treatment with selective sound absorptive treatment with fabric-wrapped Sonora® panels.

Double Duty Diffusers™ and Aeolian® sound diffusers were recommended as they would also provide some much needed low-frequency absorption in addition to broadband diffusion.

After the treatments were installed, John got right to work on experimenting…

“…ready to start doing extensive test recordings to locate the best spot and rug configuration for solo banjo… It sounds really good to my ear – now to see how the microphones hear it!”

John Bullard

Please check out John Bullard’s music!!  – https://www.johnbullard.com/

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Ken Fritz – 1942-2022

Kenneth E. Fritz

Back in April 2021, Acoustics First® Posted a blog about a listening room designed and built by Ken Fritz. This is an overly-simplified statement, as he not only designed and built the structure, but also the massive speakers, the high-tech turntable, and many of the other components. The next month, John Gardner, Nick Colleran, and Jim DeGrandis were invited to witness Ken’s masterpiece of a room in person – and now, a year later, Ken is no longer with us.

Nick Colleran standing in the “sweet spot” in front of the massive speakers. Notice the large cabinets in the foreground, which Ken was working on, even as ALS was beginning to take its toll.

Let’s back up a little bit. The history of this room goes back decades, and there is a common history between this room and the Acoustics First® HiPer Panel®. While Ken was finishing the structure back in the early 2000’s, he was focused on building a room that would help his speakers reach their ultimate potential. He had researched the geometry of the finest halls and theaters and their construction, but he was looking to take it one step further. When he was shopping for acoustic treatments for the space, he came across Acoustics First® – which was near his home. At the time, Nick Colleran and John Gardner were working on ideas for a new type of multi-layer, perforated composite, which would eventually become the HiPer Panel®. After the product completed development, and its patent was still pending, Ken’s room became the first installation of the new product.

Ken (left) and John Gardner reminiscing about the “good ole’ days.” Ken was always happy to talk about gear, music, and audio.

Ken consulted with Nick and John multiple times during the long construction process, his uncompromising attitude toward his space was always looking for the “best way, no matter what it took.” His bass traps were styled after professional mastering facilities, where the entire corner was recessed and filled with low-frequency absorption. His ceiling was modeled to direct the reflections toward the upper rear of the room, above the balcony. The speakers were hand built, as was his turntable – all of which were marvels of engineering and detail.

Ken designed and built his turntable himself – but had a scientific instrument firm engineer the table it rested on to remove all vibrations. Hidden by the fabric wall covering (behind the painting) are some of the earliest installed HiPer Panels®.

I will never forget Ken’s enthusiasm when he indulged in listening to his favorite recording of the “1812 Overture”, complete with Howitzer cannons. The magnitude of the sound would have shaken everything in the room, had Ken not meticulously isolated and anchored everything. The sound was pure and clean, even at 105dB (standing at the rear of the room – and balanced perfectly.)

Even at 105dB the system was clear and well balanced throughout the spectrum – this is no small feat – especially considering that the measurements were taken at the rear of the room.

But Ken wasn’t just about the music or the gear, he also liked to educate and learn. After listening to the recording, he went on to discuss how they had recorded the cannon shots, and even had an audio sample of the different “takes” done during the setup. This was Ken… he wasn’t just interested in how it sounded, but the process of how they got there.

We hope that Ken’s enthusiasm continues to inspire those who have an uncompromising love of music and sound, and that he will be remembered as one of the most fervent proponents of “following your dream.”

Thanks, Ken.

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Absorption & Diffusion – The Construction Specifier

For the May 2022 edition of “The Construction Specifier,” Acoustics First was asked to illustrate the use of absorption and diffusion in creating optimal acoustic spaces. The article is a great reference for understanding the types of acoustic absorbers and diffusers, as well as some use scenarios like offices, critical listening spaces, and larger communal spaces.

Note: This version has been edited and the advertisements are removed. The full published version of the May 2022 digital edition can be found on The Construction Specifier’s website here.

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Sonora® Wall Panels on the Ceiling?

Sometimes you just don’t have the wall space for acoustic treatment. When this is the case, you will often see treatments move to the ceiling… but what do you do if you have lower ceilings, or many ceiling fans and fixtures?

This narrow eating space had tons of windows, low ceilings, and many fixtures. This made hanging baffles or banners impractical.

This ceiling was sloped toward the massive windows on the outside wall, and it had lights and fans running right up the center. Complicating things further, the opposite wall had sconce lighting, doorways, HVAC, and even more windows. Finally, the floor was not carpeted to facilitate cleaning – as is the norm in many dining spaces.

With no good wall space to mount panels and no height for “hanging” ceiling treatments – direct mount Sonora® panels were the ideal solution.

Direct-mount acoustic panels are a great solution in these scenarios. Here we see an array of 4’x4’x2″ Sonora® panels attached to the ceiling in rows running down the length of the space. While our Tone Tiles® are often selected for their ability to blend in aesthetically, this particular installation proves that Sonora® panels wrapped in fabric are also a solid choice.

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