By Brent Butterworth

Everyone’s heard loud bass, but very few people have ever heard good bass. Good bass reproduction demands that every note in the bass range be reproduced evenly, with no notes emphasized. Fortunately, recent research has shown us for the first time a way to get even bass response in almost any room. The result is the most natural, accurate, and impactful bass reproduction that’s ever been achieved in the home.

Here’s the technical background: At bass frequencies (below about 200 Hz), a room acts as a resonator, much the way an empty Coke bottle does when you blow across the top. With certain notes, the room resonates, amplifying the note so it sticks out. Meanwhile, some other notes may disappear almost entirely.
Fixing this problem isn’t as simple as plugging in a graphic equalizer and adjusting a few knobs. That’s because the way the room affects the bass depends on where you are in the room. Move from one side of the couch to the other, and you’ll probably hear huge differences in the sound of the bass.
Harman International—parent company of numerous professional and consumer audio brands—recently devoted a great deal of research to finding ways to fix the bass problem. The solution they came up with is multiple subwoofers. Using two instead of one gives a big improvement. Using four instead of two gives an even bigger improvement. A Harman engineer gave me a full four-sub demo in my house a couple of years ago, and since then I’ve tried this trick with numerous subwoofers and it always delivers remarkably consistent bass response no matter where on my couch I sit.

Don’t let the thought of four subwoofers scare you. Instead of one big 15- or 18-inch model, you can use four small 10-inch models. And placement is easy: Just put the subs in the corners.

If you’re planning a new home theater or media room, talk with your installer about the merits of multiple subwoofers. If you equate bass with that annoying, boomy sound you hear when a hopped-up Honda Civic passes you, you’re in for a nice surprise.

By John Sciacca

It’s not often that you get the chance to listen to a true luminary and industry pioneer speak. Even less often when you get the opportunity to do it for free. But that’s exactly what’s being offered by Audyssey in their next Webinar, where you can hear the true Jedi Master of surround sound discuss “The History and Future of Surround Sound.”

For those unfamiliar with Tomlinson (Tom) Holman, his biography reads like the history of modern surround sound. He is credited for naming 5.1, the most commonly used surround speaker set-up today. He was also Chief Engineer at Lucasfilm where he developed a set of standards in 1982 for “Return of the Jedi.” The standards insured that theatrical playback matched what was heard in the mixing room and were called THX. In fact, he is often referred to as being the “T” and “H,” as in the “Tom Holman eXperiment.”

Holman also developed the world’s first 10.2 channel surround system – front left, top front left, front right, top front right, surround left, top surround left, surround right, top surround right, center, top center above the screen, and front and back subwoofers – which completely envelopes listeners.

In 2001, he won an Academy Award for Scientific and Technical Achievement. And recently, he co-founded Audyssey, where he continues as Chief Scientist. Audyssey’s MultEQ technology is widely used for sophisticated room correction and equalization in many home theater receivers and processors. Most recently, Audyssey has introduced Dynamic Volume to tame wild swings between loud and soft passages, Dynamic EQ to deliver consistent bass response, tonal balance and surround levels regardless of volume level, and DSX which adds height and/or width channels. (See Brent Butterworth’s impression of DSX by clicking here: http://www.soundandvisionmag.com/newproducts/3250/first-listen-audyssey-dsx.html)

Holman is currently a professor of Cinematic Arts at the University of Southern California (USC), and his book Sound for Film and Television is considered required reading for any film majors. I’ve had the opportunity to hear Holman speak, and it is always incredibly entertaining and enlightening.

The Webinar is being held on Friday, December 18th, from 11 AM to 1 PM PST. To reserve your spot, sign up now by clicking this link: https://www2.gotomeeting.com/register/424560306?utm_source=Audyssey+Master+List&utm_campaign=b30e8ec3df-emailblast20091119&utm_medium=email

by Lisa Montgomery Electronic House

Home control is all about simplicity. You press a button and a million things happen. If you can’t find that button, though, it’s pointless to even have a system in your house. That’s why it’s so important to make sure the interface (i.e. remote control, touchpanel or keypad) you use to command the lights, thermostats, A/V gear and other devices is well designed by your custom electronics professional.

It’s a difficult endeavor, both for manufacturers who build the interfaces and for the pros who design them. There are a lot of elements to consider: the layout of the buttons; the size, shape and color of those buttons; and the sequence of actions required to launch commands to electronic devices around the house. It would be easy if everyone marched to the same drum, and in many ways, we do. There are certain human factors that apply to everyone: we read from left to right, view lists from top to bottom and associate danger with the color red, for example.

Beyond these reference points, however, there’s little commonality between users, and this is where the design of a user interface gets tricky. Should your collection of music titles be listed on the right side of the screen or the left?  Would you like all of your home control commands presented on a floorplan rather than on separate “room” pages? Would you like access to your entire channel guide or just your favorite stations?

User preferences are bound to be all over the board. What you like will undoubtedly be different than your custom electronics (CE) pro’s previous customers. In fact, your preferences may be drastically different even from those of your spouse and kids.
Obviously, the more your CE pro knows about you and your family, the better prepared he’ll be to design an interface that’s intuitive and suits the needs of everyone who uses it. Think beyond those who live at your house, like the babysitter, your mother and guests who stay at your house occasionally. They’ll need to know how to work the remote, touchpanel or keypad, too.

Here are a few key factors that can help your CE pro determine the best design for your home control interface.

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