Published Articles

Here you will find a selection of the many published articles, by Art Noxon and others, regarding ASC products and services.

Art Noxon is a fully accredited Acoustical Engineer with Master of Science degrees in Mechanical Engineering/Acoustics and Physics. A Professional Engineer since 1982, he is licensed in Oregon to practice engineering in the public domain with the specialty area of acoustics. A prolific inventor, he developed and patented the iconic TubeTrap, the original corner-loaded bass trap/treble diffuser, 150 other acoustic devices, and counting. Lecturer, writer, and teacher of acoustics, he has presented 7 AES papers, numerous magazine articles, white papers and blogs. He is president of Acoustic Sciences Corporation, the company he founded in 1984.

Masters Thesis: Ripple Tank and Acoustic Analogue

Completing his master's in acoustics, Art Noxon completed his thesis "The Ripple Tank and Acoustic Analogue" in January 1975. You can find his entire thesis here in PDF form.

Why Audiophiles Need to Care About Room Acoustics

Art Noxon

Audiophiles are dedicated to the improvement and refinement in the quality of the sound they hear from their sound systems. They change interconnects and listen for improvements. They change components and listen for improvements. They usually use familiar recordings as a reference to help them determine if there are improvements.

Voicing the Church

Art Noxon

There are two aspects to Church Acoustic projects. One is the acoustic material to be used and the second is the strategy for the application of this material. Our approach when voicing the church is performance oriented. The church wants to be bright yet clear sounding. This means we add as little acoustic material as possible and carefully position it so as to best control only the problem reflections.

Subwoofers: Source of Noise Pollution

Art Noxon

The home theater subwoofer can become a neighborhood noise pollution problem. You’ll know if you get phone calls that interrupt your late night movies. Lawnmowers and leaf blowers may be the scourge of noise pollution during the daytime but late at night, it’s the subwoofer.

The Many Voices of NRC

Art Noxon

High volume rooms tend to have a lot of hard, sound reflecting surfaces and at the same time hold lots of people. The architectural ceiling and wall systems specified for these rooms are intended not only to deliver aesthetic value to the room, but additionally to deliver acoustic properties to the room.

Church Acoustics — Unnoticed Means a Successful Job

Art Noxon

When the job is done right, the acoustics work great and no one really notices. Nothing stands out, because everything is as it should be.
Reprinted From Church and Worship Technology Magazine

History of Sound Fusion Recording

Art Noxon

Art Noxon recounts the history of the Quick Sound Field for EQ Magazine. Originally published in the June 2007 issue of EQ Magazine.

Modes, Modes and More Modes

Art Noxon

Most people who read a lot, maybe even, read a little too much, begin to design their home theater by trying to figure out what their room ratios should be. Room ratios are magic numbers that are supposed to proportion the room to make it sound great. But there’s a problem with room ratios. They were originally developed for engineers who had to design reverb test chambers. By itself, that doesn’t seem like much of a problem. After all, reverb chambers have always been used for testing of acoustical materials.

Room Acoustics: Audio’s Final Frontier

Robert E. Greene, Peter Lyngdorf, and Art Noxon

Robert Harley moderates a discussion on room acoustics, equalization, and DSP-based room correction with TAS Senior Writer Robert E. Greene, Peter Lyngdorf of TacT Audio, and Art Noxon of Acoustic Sciences Corporation.

Auditorium Acoustics 101: The Quieter, the Better

Art Noxon

The architect designs a great looking and comfortable auditorium. The sound contractor installs a great looking sound system. The people attend the grand opening and are impressed with what they see, but they have gathered for more than a dazzling display of architecture, lighting, electronics, carpets, glass, surface textures and paint. They have come to be in an auditorium, a place to hear and, moreover, a place to listen to and learn from the lecture or, as the case may be, the sermon.

Auditorium Acoustics 102: Reflections Make All the Difference

Art Noxon

An auditorium is a place where people come to "audit", it's a place to listen. It won't matter if the auditorium is big and beautiful, warm and comfortable, if the people can't understand what is being said in the auditorium, it just isn't doing the right job. In the previous article on auditorium acoustics, we considered that quietness is more than an important factor, it is the prerequisite for good listening.

Auditorium Acoustics 103: Speakers Make Sound, Acoustics Clean It Up

Art Noxon

Intelligibility is the single most important service that an auditorium can provide. Without intelligibility, an auditorium is functionally little more than a gymnasium after the basketball hoops have been folded out of the way and the chairs have been carted out, unfolded and set up.

Auditorium Acoustics 104

Art Noxon

When working with an acoustician in the design or renovation of a hall it is helpful for all to have an understanding of the basic concepts in auditorium acoustic design. You can't really design a hall just by knowing the basics of auditorium design. The acoustician maintains an arsenal of trade secrets and insider techniques, reserved to managing sound once it's been launched from the loudspeaker. But by understanding the basics, you can at least keep track of what and why various things are being done.

Big Church Acoustics

Art Noxon

"All too often, a church is built like a civic auditorium--big space and many seats--yet in the case of a large church, the building is expected to perform like a church. An auditorium is made for "auditing", or listening. A church is made for auditing and singing, therein lies the important difference. Most acoustic design projects, and churches are no exception, start with a budget and a vision.

Home Theater Acoustics - vol 1

Art Noxon

How the Distraction Factor of the Room Is Important - A five-part series by Art Noxon from Home Theater magazine - part 1

Home Theater Acoustics - vol 2

Art Noxon

Common Home Theater Acoustic Problems - A five-part series by Art Noxon from Home Theater magazine - part 2

Home Theater Acoustics - vol 3

Art Noxon

How Resonant Modes Create Sound Cancellation - A five-part series by Art Noxon from Home Theater magazine - part 3

Home Theater Acoustics - vol 4

Art Noxon

Speaker Positioning For Maximum Sound - A five-part series by Art Noxon from Home Theater magazine - part 4

Home Theater Acoustics - vol 5

Art Noxon

Flutter Echo/Flutter Tones In the Home Theater - A five-part series by Art Noxon from Home Theater magazine - part 5

The Chain Is As Strong As Its Weakest Link

Art Noxon

An article by Art Noxon written for the first Hong Hong HiFi Show, 1993 - Translated and published in Chinese

Trapping Bass In Your Project Studio

Art Noxon

Sound is acoustic energy and rooms store this energy. Resonance is nature's most efficient way to store acoustic energy in a room. Resonant energy easily lasts two times longer than sounds that are not resonant, and this is how the coloration of sound occurs in small rooms.

The Wall In The Desert

Art Noxon

An old saying is known in many countries "The chain is only as strong as its weakest link." Often, when we talk about the parts in our audio system, they are referred to as components and interconnects in the audio chain. Each component processes the signal and the interconnects transfer the signal from one component to another. This is hopefully all for the better, resulting in quality sound arriving at our ears.

Recommended Reading

Articles by others regarding ASC products and services.

Sound, stress, and seahorses: The consequences of a noisy environment to animal health

Paul A Anderson, et al

Seahorses exposed to loud ambient noise in aquaria exhibit primary, secondary, and tertiary stress responses at behavioral and physiological levels, necessitating allostasis at costs to growth, condition, and immune status. Aquarists and aquaculturists are thus advised to incorporate soundproofing modifications during design and set-up of facilities to improve fish health, and growth in culture.

Room Treatments, Part 2

Roger Gordon

Your listening room, according to the
experts, contributes at least half the of the sound you hear in your
room. As such, your room is the most important part of your audio
system. Yet it the component on which most audiophiles spend the
least money.

Your Room: The Final Link

J. Peter Moncrieff

There's a special joy and excitement in pursuing the audiophile hobby. And this excitement reaches a climax when, on that rare occasion, you make a sonic breakthrough with your audio system.

ASC Tube Traps Creating A Listening Studio

Ann Turner

We come equipped with
ears that connect to a brain - a combination act resembling a video set
unable to differentiate between channels. We get it all, no channel
selector. This perception of auditory cues is incredible, underrated,
with complex direction and distance filters built in.

ASC TubeTraps

Bryan Southard

Acoustic Sciences Corporation, more
commonly known as ASC, has been manufacturing acoustic room treatment
devices for the better part of 15 years.

The ABCs of ASC’s TubeTraps

Jon T. Gale

With apologies to Rodney Dangerfield, this seems to be an audio truism. Audiophiles as a collective, have steadfastly refused to acknowledge that the most important component in the playback chain is the listening room itself. It’s more appealing, perhaps, to purchase the latest box of gleaming gold and silver, or towering sculpture of wood and lacquer.

Acoustic Sciences Corporation Studio Traps

Over time I've successfully used a variety of tuning devices to refine the acoustics in Kathleen's and my listening room. But I've always suspected that Acoustic Science's Tube Traps might be a good way to finish it off.

Unlocking the Best Audio Performance From Your System

Gary Altunian

"The dimensions, shape, and features of a listening room can have a profound effect on sound quality, starting with the bass. Based on its dimensions and shape, every room has resonant modes or standing wave resonances that either reinforce or attenuate bass frequencies. The most common malady is boomy or heavy bass. And if the bass isn't right, nothing sounds good. Room-resonance modes are present in frequencies from 20 hertz up to about 300 Hz, and they first occur when a sound's wavelength is twice the length of the room.

Church Cry Room Acoustics

Tim Bott

Cry rooms—soundproof and comfortable—are indispensable for many churches. For parents who want to attend a service, but must care for their infants, escaping to a cry room during a short tantrum helps calm down the child and allows the rest of the sanctuary to continue a peaceful service. However, a sealed off room may not be right for some congregations, as feelings of exile can surface when a parent steps out of the spiritual community of a sanctuary.

The Art Of Church Acoustics

Tim Bott

Acoustics is a hidden force that can help or hurt a church service; when the acoustics have been shaped and controlled, the sermon will be clear and understandable, and the music will be more energetic and uplifting. But poor acoustics can create problems for all parts of the service, and they can be difficult to correct. Too much acoustic treatment can drain the life from a service, while too little can make the service sound cluttered and uncomfortable.

ASC TubeTraps - Creating A Listening Studio

Ann Turner

Acoustic products control bouncing sound, allowing us to hear the unmeasurable, low-level sound that our ears are designed to use in orienting and judging distance.
Originally published in the abso!ute sound Issue 112, 1998

An Incredible New Sound for Engineers

Daniel Sweeney

Increasingly, the launch of a new Michael Jackson collection has taken on the dimensions of a world event. Lest this be doubted, the videos promoting the King of Pop's latest effort, "HIStory", depict him with patently obvious symbolism as a commander of armies presiding over monster rallies of impassioned followers. But whatever one makes of hoopla surrounding the album, one can scarcely ignore its amazing production values and the skill with which truly vast musical resources have been brought to bear upon the project.

Tour de Germany

Marcel Schaal

Five time Grammy winner Bruce Swedien is the only producer/engineer whose clients range from the Big Band era of Count Basey to the King of Pop, Michael Jackson. Swedien, the master of mixing, just finished a two week tour through Germany where he shared a plethora of knowledge with German audio professionals. At three world-class studios "Do Nothing Till You Hear From Me" a song from Quincy Jones latest album, was re-mixed featuring Phil Collins on vocals.