How Does Acoustical Absorption Work?
Walk outside on a cold winter day just after the first big snowfall and you can hear the hush in the air. Everything sounds different because that hush in the air is the snow absorbing sound. Now, compare that to walking into a gym where the sound bounces around and lingers in the room. Also, have you wondered why some hotel rooms are “soundproof” and some seem to have walls that are paper thin? (more)
The other day at a popular chain restaurant, I dropped by the restroom before a long ride home. I’ve heard some loud toilet flushes in my day, and this one was right up there with the loudest of them. While it caught my attention, it didn’t make me jump too high out of surprise. However, when I saw a young girl coming out of the neighboring stall, she had a look of shock on her face. She said, “That SCARED me!” Not something I would think most businesses want to do to their customers. (more)
The National Council of Acoustical Consultants & the American Institute of Architects
The National Council of Acoustical Consultants (NCAC) is the only North American organization fully devoted to certifying the credentials of acoustical consultants. Kenric Van Wyk, President of Acoustics By Design, was elected to the NCAC Board of Directors in 2006. He has served as the Vice President of Finance, and was recently elected as the Vice President of Marketing and Communications. To join the NCAC, acoustical engineering firms have to be completely independent with no ties to any product manufacturers or distributors. This ensures that each firm provides objective recommendations that are free from bias. Since 1962, the NCAC has supported the acoustical profession through:
- recognizing expert Acoustical Consultants and Engineers.
- promoting opportunities for peer interaction.
- providing a reference tool for the public to learn more about the profession and to find a consultant matched to their needs. (more)
Optimizing Church Sanctuary Acoustics for Congregational Singing
I recently received a call from a pastor asking how to enhance their congregational singing. The church had recently inherited a new building, and the pastor was concerned that the congregational singing was just not “what it should be”. The band was great, and they rocked the place out. But the congregation was feeling a bit overwhelmed and “lost in the crowd”. (more)
How People Discover Acoustical Engineering
I admit that I like working in a niche field. I especially like the reactions of people who ask me what I do for a living and have never heard of an acoustics engineer. They find it amazing that someone does this type of work, or they start asking questions or making comments about some experience they have had with (usually poor) acoustics. Recently, on my way to an acoustics conference, I crossed the border at Detroit’s Ambassador Bridge, which is the busiest US-Canadian crossing… (more)
Not All Acoustical Surfaces Are Created Equal
The orchestra that I play in used to perform at local public schools. The high school auditoria that we regularly used were so-so for acoustics, but we learned to appreciate them when a scheduling conflict bumped us to a junior high school for one concert. This auditorium ceiling was treated with a spray-on absorbing material that made it feel like we were playing into a sonic black hole. After we finished, it sounded like twenty people were clapping, which I hope there were more…maybe not if they couldn’t hear us. (more)
Naturally Ventilated Buildings and Loud Noisy Acoustics
The LEED® green building certification program gives out points for naturally ventilating buildings, and it also gives out points for acoustics – especially for low levels of background noise levels. As the industry is finding out, naturally ventilated buildings create more opportunities for buildings to be penetrated by exterior noises, thus creating unintended loud background noise levels. I was interviewed by Buildings Magazine for their article, Fresh Air Creates Fresh Acoustical Concerns. Read the whole article here… http://www.buildings.com/ArticleDetails/tabid/3321/ArticleID/10021/Default.aspx
Video Blog | Healthcare Acoustics Nightmare
This is a fictional video we made to illustrate the many problems of acoustics, noise, and vibration in modern healthcare facilities. It shows why hospitals and health care facilities need acoustical engineers. © 2010, Acoustics By Design.
Reflections at Little Beaver Lake
On a beautiful autumn day a long time ago, I was on a glorious backpacking trip to Pictured Rocks National Lakeshore in Michigan’s Upper Peninsula. One still morning while rinsing off in Little Beaver Lake, I was alarmed to hear voices that sounded very near, as I was sporting my birthday suit. After quickly sinking into the water up to my neck, I searched for the people and to my relief found them on the opposite shore of the small lake, out of “detailed sight” range. That was a memorable lesson in how well water reflects sound. (more)
The Top 5 Acoustical Challenges of Church Video Venues
Church video venues are popping up everywhere. For many churches, they have become the go-to solution for solving the growth “problem”, which of course is a good problem to have. Church video venues are great for a number of reasons: they can offer an alternative worship music experience, they can keep a church unified by offering the same video sermon (live or recorded) to multiple venues, they can be a terrific option for landlocked churches, and much more. But what about the acoustics? What are some of the most pressing acoustical challenges of church video venues? (more)
Sound Healthcare 2010 – Upcoming Webinar
With only one stop left on our Midwest Tour, Sound Healthcare 2010 has already been presented to over 450 architects, engineers, designers, and healthcare professionals. But along the way something unexpected has been happening: people all across the country have been contacting us about attending the tour (which is a good problem to have). Some have gone as far as flying in to attend the seminars in person, but the majority have been asking about the possibility of a webinar presentation. Good news: if you are unable to make it to our last stop in Milwaukee on June 29th, we have a plan in the works to offer Sound Healthcare 2010 via webinar. But first, what are people saying about Sound Healthcare 2010? The following quotes are taken verbatim from our anonymous online survey:
Several weeks ago, a client invited me to a rehearsal in their highly reverberant space that ABD was hired to test and correct. I declined, as I already had plans to attend a play that evening at a different facility, and joked that during the performance I’d also be listening to sirens from the main street outside the theater. Nearly every time we attend a performance in this space, we hear sirens going by the building. Sure enough, on cue in Act II, “errrrrreeeeeerrrrrhhh” slices into the hall. My husband and I shake our heads. This is why sound isolation of performance spaces from outside noise intrusion is so important. (more)
Kachur to Speak at Audio Engineering Society
Every audio engineer must have a thorough understanding room acoustics to effectively perform their job. Mandy Kachur, Senior Consultant at Acoustics By Design, will discuss the fundamentals of acoustics for both large and small spaces at an upcoming meeting of the Audio Engineering Society. The discussion will focus on room modes, sound absorption, sound reflection, sound diffusion, sound isolation, and reverberation time. (more)
Acoustics from the Ancient Amphitheatre to the Modern Arena
In the days of the ancient Romans, crowds would gather by the thousands in the amphitheater to see a wide range of events: public ceremonies honoring brave soldiers, performances of dramatic presentations, or the gruesome games of the gladiators. Although the events were a visual extravaganza, the amphitheater and coliseum were also designed acoustically to allow the entire audience to hear. Fast forward two thousand years, and we still gather in large groups to see college graduations, rock concerts, sporting events, and more. Two of the primary senses that are titillating to the large masses still remain the same: visual and aural stimulation. (more)
Acoustics By Design Receives “Best of” Award for Acoustical Engineering
Acoustics By Design has been selected for a 2009 “Best of” Award in the Acoustical Engineering category by the U.S. Commerce Association (USCA). The “Best of Local Business” Award Program recognizes outstanding local businesses throughout the country. Each year, the USCA identifies companies that they believe have achieved exceptional marketing success in their local community and business category. These are local companies that enhance the positive image of small business through service to their customers and community. (more)
Comments Off |
The Acoustical Stimulus Package
Whether you’re a fan or not, Obama’s economic stimulus package passed recently, opening the door to gobs of government money (ie: your tax dollars at work) being pumped into the economy. So where do acoustics fit into the puzzle? Well, they’re becoming a key piece. To use an analogy from the car industry, acoustical design used to be viewed as a “Cadillac” service in the world of architecture and engineering. That is, acoustics were seen as an expensive add-on for only the most affluent clients. Not so anymore. 2009 is ushering in a new era of green building practices with acoustical design as a key and indispensable design element for buildings. And as the popularity of architectural acoustics increases, so do its funding and its benefits. (more)
LEED for Healthcare to be Adopted in 2009
The LEED Green Building Rating SystemTM is a voluntary, consensus-based national standard for developing high-performance, sustainable buildings. LEED was created by the U.S. Green Building Council to define “green building” through a common standard, and to promote integrated, whole-building design practices. There are several categories of LEED building certification programs including: LEED for New Construction, LEED for Existing Buildings, LEED for Schools, and LEED for Retail, just to name a few. And as of last week, the U.S.G.B.C. announced plans to adopt a new LEED category in 2009: Healthcare. (more)
“…You can’t handle the truth!” If you’re a movie fan, then you probably recognize this line from the 1992 blockbuster, A Few Good Men. Of course, Nathan R. Jessep (Jack Nicholson) delivered the line in response to Lt. Daniel Kaffee’s (Tom Cruise) questioning in that tense courtroom scene. But in the real world, what happens when a loud outburst like this takes place…in a Courtroom, in a Judge’s Chambers, or in a Jury Room? How is that sound stopped from transmitting into adjacent rooms and hallways? The unfortunate truth is that in many cases, it’s not. (more)
Subscribe via email
Enter your email address
Delivered
by FeedBurner