Jon Herron Tag

So You Think Your Room’s Bad, Pt. 6

Six installments in, we’ve arrived at the end of our tale about turning a trade show booth into a reference-quality home cinema space. But we’re not here to pat ourselves on the back. Yes, the demo room ultimately drew scores of visitors, and praise from the people who experienced it.

 

But this series of posts was meant to be inspirational, not self-congratulatory. Our aim was to encourage you to not give up on “problem” spaces until you’ve exhausted all the possibilities. The technology and expertise definitely now exist to turn rooms that would have once been dismissed as impossible into killer luxury home entertainment spaces.

 

Here are the key takeaways:

 

Even rooms with weird dimensions can make for a great home theater

If we had focused all of our design efforts exclusively on performance, there’s no way we would have chosen an overgrown bay window as the geometrical inspiration for our room. The hacked-off corners inside the room were driven by the various needs of the outside of the booth. But with the right choice of gear and some optimization with the speaker placement, we made this kooky space sound great.

For more on how to make non-symmetrical rooms work 

to your advantage, see Part 1 and Part 2

 

Choose your speakers carefully—not all luxury speaker systems are made the same

This doesn’t mean that one speaker is necessarily the best answer for all applications. Speaker systems come in all sorts of shapes, sizes, and configurations. Some are designed like audio spotlights. Some deliver a wider swath of sound. Some subwoofers are designed for in-ceiling placement. Of course, if you don’t have attic space to work with, you might opt for in-wall subs, or even discreet in-room subs (like we did). The point is, you shouldn’t just assume that a speaker is a speaker. Find the right solution for your unique room.

For more on choosing the right speakers, see Part 3

 

Room correction can eliminate a lot of a “bad” room’s worst flaws

It wasn’t that long ago that the room-correction software solutions built into most surround sound systems created more problems than they solved, but in recent years they’ve made monumental improvements. These days, a good room correction system can practically eliminate the need for big bass traps and other gargantuan physical acoustical treatments. And the best of these solutions can even correct for sub-optimal speaker placement.

For more about room correction, see Part 4

 

Acoustic treatments can help solve the problems room correction can’t fix

Since room correction still struggles with some acoustical problems, don’t turn your nose up at physical acoustical treatments. You may find that you can even work these treatments into your interior design.

For more about acoustic treatments, see Part 5

 

And maybe most important of all:

 

Creating a premium entertainment space is a team effort, so pick your players wisely

If, for whatever reason, subtle acoustical treatments are an absolute no-no in your luxury entertainment space, encourage your integrator and designer to work together on alternative solutions. A carefully placed bookshelf or even draperies positioned in the right place can work wonders for the sound of your room. But this requires that all of the

Jack Shafton, Golden Ear VP of Marketing & Sales
GoldenEar’s Jack Shafton on the Finished Booth

 

GoldenEar VP of Marketing & Sales Jack Shafton co-authored the 3rd installment of this series with Dennis Burger. Here’s his reaction to experiencing the completed booth at the CEDIA convention in San Diego this past September:

 

“Upon seeing the finished product when the show opened, I was impressed with how the booth turned out (it looked great and highly functional), and also alarmed by the openness of the demo space. There was already a big crowd milling about the booth (kudos to Kaleidescape) and the theater demo was standing room only. The space was basically open to the show floor, just behind a draped entryway. I waited for the next showing and grabbed a seat before the room filled. I should have known, but the demo of Baby Driver caught me by surprise—this system, in this terrible room, just rocked! And other than the small subs, the sound system was basically invisible. It presented a seamless bubble of sound around and above with pinpoint imaging, and the the subs made the air move with a thunder. Of course I kept thinking ‘louder, make it louder’ because it was fun—although they had chosen a good compromise on volume level. I got the impression after the demo that the other people in the room would have liked to kick back and watch the whole movie!”

players respect one another and their specific design expertise. There will always be some give-and-take. All parties will have to compromise at some point. But if you can find collaborators who know when to hold ‘em and when to fold ‘em, your luxury entertainment space will be all the better for it.

 

If you’re ready to tame a problem space but aren’t sure where to look for help, the Home Technology Association (HTA) can be a great resource. And, by continuing to showcase unusual but successful home entertainment rooms, we at Cineluxe will do whatever we can to lend a hand.

 

Before we wrap this up, we’d like to thank some of the greatest experts in the business—in particular, Jack Shafton at GoldenEar, Jon Herron at Trinnov, and Anthony Grimani at PMI—for making our pitifully small demo room sound way bigger and better than it ever should have. And we’d like to wish all of you luck with turning your own problem rooms into amazing sight and sound experiences.

Dennis Burger & Michael Gaughn

Dennis Burger is an avid Star Wars scholar, Tolkien fanatic, and Corvette enthusiast
who somehow also manages to find time for technological passions including high-
end audio, home automation, and video gaming. He lives in the armpit of 
Alabama with
his wife Bethany and their four-legged child Bruno, a 75-pound 
American Staffordshire
Terrier who thinks he’s a Pomeranian.

Michael Gaughn—The Absolute Sound, The Perfect Vision, Wideband, Stereo Review,
Sound & Vision, The Rayva Roundtablemarketing, product design, some theater designs,
couple TV shows, some commercials, and now this.

So You Think Your Room’s Bad, Pt. 4

So You Think Your Room's Bad, Pt. 4

Dennis Burger:

 

In Part 3 of this series, I discussed how we arrived at a speaker system for the Kaleidescape booth by solving the riddle of the back of the room and working forward. I also hinted that Trinnov’s Altitude 16 home theater preamp/optimizer was key to making those speakers sound their best.

 

How did I get from “I need something to power these speakers and process all of the audio” to “Gimme one of the most advanced and luxurious audio/video preamplifiers on the planet,” you ask? It was a bit of a winding road, so let’s start at the beginning of it.

 

When we were first understanding what this room would look like and how we wanted it to sound, someone in our design group (I forget who) asked a simple question: “Can we do this with an AV receiver?”

 

It’s a reasonable question, since we wanted the space to evoke a living room environment, and AV receivers—in which all of the digital signal processing and amplification reside in one box—generally power the sound systems in such rooms. But in this case, my back-of-the-napkin calculations told me we needed 160 watts of clean power for every speaker, which is way more than most receivers can deliver.

 

I also knew we needed really amazing digital room correction to compensate for all of the acoustical shortcomings of this space. (If you’re not familiar with digital room correction and how it works, check out my article “Room Correction Revisited” at Home Theater Review.) The long and short of it is that the room optimization software built into most AV receivers wouldn’t be sophisticated enough.

 

So, given that we needed a separate AV preamp to handle the processing and standalone amplifiers to power the speakers, I started thinking long and hard about what was out there. I wasn’t picking between equipment manufacturers; I was picking between room correction systems—two in particular: Dirac and Trinnov. (Lyngdorf Audio’s RoomPerfect probably would have been a great option, too, but I don’t have hands-on experience with it, and given our time constraints I had to go with what I knew.)

The advantages of Dirac are that it’s available in much more affordable equipment, and its filters would have made this particular room sound really good with only a little effort. But I was informed that “really good” wasn’t good enough. We needed the best.

So You Think Your Room's Bad, Pt. 4

So, I turned to Trinnov, whose Altitude 16 (shown above) delivers the most advanced and customizable room correction I know of. What’s more, the Altitude 16 can sonically relocate speakers through some deft processing that I don’t even understand. This was handy because, as I said in the last post, sometimes we had to position speakers in such a way as to accommodate multiple standing-room-only attendees.

 

I reached out to Jon Herron, Trinnov’s International Sales Manager, and asked if I could take him on a 3D tour of my latest revision of the booth design via Google Hangouts. Here’s Jon with his own first impressions of the 3D renderings, along with some thoughts on the specific room correction challenges this demo space posed.

 

 

Jon Herron:

 

So, the challenge was to get sound that is as lifelike as possible in a space that (by itself) would be about as far from lifelike as you can get. The background noise would be high (since it was a trade show). The construction would be temporary and necessarily focused on speed of assembly rather than quality. The shape of the space was also driven to some degree by architectural features not normally found in a home.

 

Imagine trying to get a concert-hall experience in a baseball stadium.

 

Success in any endeavor involves first understanding the nature of the problem. In this case, the problem was largely based on psycho-acoustics—understanding how we humans hear and understand the world around us based on what we hear.

 

A key to understanding how we perceive sound is to understand that we always, without thinking about it, hear three different things:

 

Direct Sound: This is the sound that goes straight from the source (in this case, a speaker) to your ears. Our brains will “hear” this first arrival as the true source and nature of the sound itself.

 

First Reflections: The very next versions of the sound are the first reflections from the surroundings. In a room, these reflections are typically the first bounces from the floor, ceilings, and walls. These tell you quite a bit about the environment you’re in—outdoors (few reflections), or in a larger or smaller room, for example.

 

Subsequent Reverberation: Unless steps are taken to absorb or scatter the sound away from you, sound usually will bounce around for a while. These multiple, later, and smaller versions of the direct sound tell you even more about the environment you’re in. You’d have little or no reverberation outdoors; you’d have quite a lot in a cave; you’d probably hear something in between in your living room or a concert hall.

 

Unfortunately, it’s really easy to mess up what Dennis describes as “room correction” by trying to address all these disparate problems with a single solution. The problems are different; therefore, the best solutions are also different and need to be determined and layered together.

 

If you badly break a leg, you must first realign things, stabilize the leg with a splint, and then put it in a cast for long-term healing. Doing just one of those things, or doing all the things out of order, simply won’t work. It’s the same with using digital signal processing to fix a “broken” acoustical environment.

 

In our diagnosis of how we hear, the second and third items above are “soft” in the high frequencies (imagine turning down the Treble control) for the simple reason that higher frequencies are far easier to absorb or scatter than are lower frequencies. If you don’t make an allowance for the reflected energy sounding different than the direct, you’ll mistakenly ruin the direct sound in a vain effort to fix the environment of the room itself. They are different problems.

 

This, by the way, is why we at Trinnov refer to our system as a Speaker/Room Optimizer. We’re trying to optimize all these different problems with appropriate digital processing solutions, rather than trying to simply “correct” the room with a one-size-fits-all solution.

So You Think Your Room's Bad. Pt. 4

In the trade show demo room, the No. 1 priority was to focus on getting the direct sound as natural as possible. Mitigating first reflections (where we could) was also important, but not if it compromised the direct sound.

 

Similarly, we wanted to provide a more natural reverberant decay (the rate at which sound dies away) that didn’t allow one range of frequencies to stick out like a sore thumb or otherwise call attention to itself. In a good concert hall, when the symphony suddenly stops playing, the entire, rich tapestry of sound should

die away together. If the flute section reverberated after the other sounds had faded, even for a moment, it would sound extremely unnatural, even unpleasant.

 

Addressing all these varying challenges in a way that truly lets you enjoy the music or movie you choose without the heavy-handed overlay of the sound of the room you’re in requires (ideally) a combination of passive acoustics and what we at Trinnov have come to call “digital acoustics.”

 

 

DB again:

 

And that’s the perfect segue into the next post in this series. I knew that physical acoustical treatments, working in conjunction with Trinnov’s digital acoustics, would make this demo room sound its best. But I also didn’t want to make the room look like a recording studio. We’ll dig more deeply into those concerns in Pt. 5.

Jon Herron has been in the audio & video business since he was a teenager. The
combination of music and technology was simply too seductive for him to do anything
else—that and the fact that no one would likely hire him to do anything else. He has
worked in both large and small retail organizations, as a manufacturers’ representative,
and (mostly) for a series of audio manufacturers, including Snell Acoustics, Madrigal
Audio Laboratories, Wisdom Audio, and Trinnov Audio. He lives in Connecticut with his
wife and two terribly spoiled cats.

Dennis Burger is an avid Star Wars scholar, Tolkien fanatic, and Corvette enthusiast
who somehow also manages to find time for technological passions including high-
end audio, home automation, and video gaming. He lives in the armpit of 
Alabama with
his wife Bethany and their four-legged child Bruno, a 75-pound 
American Staffordshire
Terrier who thinks he’s a Pomeranian.