Archive for category Absorption

Project: Richmond Friends Retreat Center

The amount of glass in the room and the hard floors made the space overly reverberant – which reduced speech clarity and intelligibility.

Earlier this summer, Richmond Friends Meeting reached out to Acoustics First® for assistance with their new Retreat Center in Amelia, VA. Their multi-purpose community hall was overly live with reverb and echoes, contributing to a poor listening environment. As this space is used for worship, meetings and social events, speech intelligibility is very important and more control was needed to “reign-in” excessive noise.

To correct these issues, Acoustics First® recommended a combination of 1” Hi-Impact Sonora® Wall Panels and 2” Sonora® Ceiling Panels. The acoustic design utilized “staggered” 2’x6’ ceiling panels to maximize coverage, in addition to the custom-shaped wall panels which match the slope of the ceiling.  

To increase absorption and for visual interest, Sonora® panels were mounted in a staggered pattern on the ceiling.

With approx. 400 SQFT of panels between the wall and ceiling, reverb was reduced by approx. 50%, drastically improving speech intelligibility and general room comfort.

The Sonora® Wall Panels along the roofline were shaped to match the slope of the ceiling.

The treatment tamed the acoustics of the room, which improved speech intelligibility by reducing the reverberance… and they were very happy with the result!

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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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Scoop up some Fireflex™ Waves

Ice cream shops are often places with acoustic challenges. Some have large glass windows, glass freezers, compressors, and other equipment… Let’s not forget all the patrons and excited children! In retail environments like these, good acoustics are important for accurate order taking, customer comfort, and safety concerns. These spaces also require Class A fire rated materials to meet many local fire codes.

The high ceilings were an easy place to put some acoustic treatment without interfering with the activities of the shop and Fireflex™ Waves were an ideal solution. The ceiling-mount Waves can be installed in either a cloud (horizontal) or baffle (vertical) configuration. In this particular space, the perpendicular baffle installation was the most efficient use of the Waves, and their Class A fire rated Fireflex™ material is also easy to cut in the field – which was handy when they had to work around an I-beam.

If you have an environment that needs acoustic treatment, reach out to Acoustics First® online or at 888-765-2900.

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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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StratiQuilt™ Goes Mobile!

Here’s a recent install pic featuring our sound absorbing StratiQuilt™ Blankets. These custom-made fiberglass blankets were installed for the County of Henrico’s mobile stage by RTW Construction out of Bumpass, VA. 

For this application, the double-faced ‘SQ124’ version of this product was used. StratiQuilt Blankets are also available as single-faced (SQ122) or double-faced with a sound blocking vinyl barrier septum (SQ125).

A mobile stage has some different practical considerations compared to a standard auditorium, and the rugged SQ124 blankets fit the bill nicely!

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