Archive for category Mentions

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.

让我们后退一点。这个罗的历史om 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.

肯自己设计和建造转盘——但是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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NWAA Labs goes nuclear in Stereophile

Ron Sauro of NWAA Labs talks about his massive test facility, speaker measurement, sound diffusion, and more in this article in the August 2022 edition of Stereophile Magazine.

Ron Sauro shows off the current configuration of NWAA Labs’ massive Free-Field Chamber – complete with giant anechoic wedges and a 4+ meter arc of microphones, this room could also comfortably nest 4 football fields.

In the article, there is mention of the advances that Jim DeGrandis and Acoustics First® have made in the understanding of diffusion, the developing standards for testing in the ASTM, and their published research into modelling/simulations for refining new acoustic materials.

Read the Article Now!

For more information about this edition, and other editions of Stereophile, visit them athttps://www.stereophile.com/

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The HiPer® Panel and Ken Fritz’s Dream

Ken Fritz completes his dream theater, and behind the scenes is theHiPer® PanelbyAcoustics First®

There are many home theaters of note, but rarely is one created (at this scale) by the singular dream and dedication of one man. Ken Fritz involvedAcoustics First®early in the project to perform acoustic measurements of the space, and his theater became the first large-scale installation of our newly developedHiPer® Panel.From beginning to end, Ken says that he spent more than 25 years on the realization of his dream – and others have taken notice.

Ken’s vision had a scale that is rarely seen in home theaters.

There have been numerous write-ups of Ken’s theater, which was constructed (from the ground up) specifically for this purpose. The walls are hurricane grade block construction, the roof-line is constructed to improve the acoustics, the walls are clad inHiPer® Panels,the bass emanates effortlessly from in-wall enclosures – and just look at those custom built arrays that Ken designed and constructed by hand! This project is more than just a labor of love, it is an obsession with excellence.

Even a custom-designed and hand-built turntable feeds Ken’s dream environment.

This obsession covers every aspect of the room and the system, with everything being either built by hand, customized to his specifications, or simply the best you can get! If there is a “home theater mountain,” Ken built a skyscraper at the summit – but don’t take our word for it…

You can watch the one-hour documentary telling the story behind the dream – in Ken’s own words.

Watch the documentary of what has been called “The Best Stereo System in the World.”

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S.A.M.M.™ – Smart Sound Management

S.A.M.M.™
Sound Attenuation Matrix Management
by Acoustics First®

20 Years ago, John W. Gardner developed the ASP™ Panel Technology to maintain optimal acoustic performance of our acoustic absorber product lines – like theSonora® Wall Panels.Recent developments have been made to augment this earlier technology, and our Research & Development team has evolved this technology into the “information age.”

SAMM panel

Meet S.A.M.M.™, the smart way to manage your panel maintenance tasks.

S.A.M.M.™ Panels analyze the acoustic environment and use this information to track their exposure to sound pressure levels. This can be monitored real-time, either directly through the energy efficient OLED screen, or using any device with a web browser.

This technology allows more than just monitoring the acoustic environment. The S.A.M.M.™ Enabled panels have a HAL BIOS which runs a webserver daemon that gives you full-control of your panels and the acoustic environment…

… but this isn’t only for S.A.M.M.™ Enabled Panels!

After a simple firmware upgrade to your ASP™ panels, you will have full control over your entire acoustic environment – from anywhere in the world.

I am flattered that you have taken the time to reevaluate one of my lifetime projects. I owe all of my minimal knowledge… to my first professor… I LIRPA.

Dr. John Wesley Gardner

Watch the following video to see the history of the ASP™ panels developed by the irreverent, John W. Gardner, and their evolution into the Sound Attenuation Matrix Management Technology known as… S.A.M.M.™

The History of ASP™ Technology and its evolution into S.A.M.M.™

S.A.M.M.™ is Open Source

Acoustics First® values innovation, and we can all stand on the shoulders of giants. Customers can build their own implementations and create the ideal solution for their environment. While you can use whichever hardware that you have access to, here is the hardware our research team used to develop our in house integration.

Components:

Custom 3D Printed Housing (PLA)
SEEEDuino XIAO M0+ (MCU)
128×64 OLED (SSD1306)
SD Card Reader (SPI)
Electret MIC w/Adj. Gain (MAX4466)
LM386 Amplifier
5 Watt/8 Ohm Speaker
12mm Momentary Switch (Red LED)

Optional – 10000mah USB Battery
(Click the image to enlarge)

Source Code:

The S.A.M.M.™ Source code was written in PlatformIO to be compatible with the Arduino Platform. The MCU is theSEEEDuino XIAO M0+with the ARM Cortex M0 processor.

The libraries used in this project may need to be changed based on your hardware selections.

Download Source Here.

S.A.M.M.™ Web Console

Experience the S.A.M.M.™ Web Console interface. View the real-time output of the first S.A.M.M.™ unit, installed in the Acoustics First® R&D LAB. You can view the current capacity of the panel, as well as the average sound intensity – and as a bonus – we allow users to PURGE the panel remotely!

View the S.A.M.M.™ Web Interface


Stay up-to-date with cutting edge advances in acoustics withAcoustics First®.

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The Elephant in the Lab – AudioXPress

The elephant in the Anechoic chamber

AudioXPressturned toAcoustics First®for their “Focus on Acoustics” Edition (August 2020), to help shed light on what test data is – and what it isn’t. Many people rely on lab results when trying to find products that meet design criteria… but there are limitations to this data. The “Elephant in the Lab” is that thereis no such thingas absolute, repeatable, accuracy in lab tests… and this article brings to light why that is, and why it will likely always be the case.

It also addresses the impact this has on calculation accuracy, simulations, and what is being done to address this issue.

Read the article now!

Read the article on AudioXPress.com
You can get more information about the AudioXPress August 2020 issuehere.

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