Voice Coil 2011 09.pdf

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VOLUME 24, ISSUE 11

SEptEMbEr 2011

®

In ThIs Issue

1

InDusTRY neWs

AnD DeVeLOPMenTs

By Vance Dickason

sPOTLIGhT

Automated Perceptual Rub & Buzz

Distortion

By Steve Temme

ACOusTIC PATenTs

By James Croft

TesT BenCh

SB Acoustics and SEAS Drivers

for Home Audio Applications

By Vance Dickason

InDusTRY WATCh

By Vance Dickason

Products & Services Index

8

16

20

CEDIA Expo Floor Show, p. 5

28

SEAS of Norway's New

Midbass Woofer, p. 21

30

Industry News and Developments

By Vance Dickason

• Gain insight on surround sound fundamentals and

video display options

• Identify seating, room, viewing distance, and lighting

considerations

CEDIA Expo 2011

This year’s CEDIA (Custom Electronic Design & Installa-

tion Association) Expo event is being held back at the Indiana

Convention Center on September 7–10 in Indianapolis, IN.

This will be the first Indianapolis CEDIA event since the re-

modeling of the Indiana Convention Center several years ago.

Indianapolis also happens to be CEDIA’s headquarters.

As usual, CEDIA University is providing a wide selection of

workshops, classes, and seminars related to the various aspects

of the AV install industry. Courses of interest to loudspeaker

industry persons include:

Home Theater Room Design —Instructor: Sam Cavitt—The

room itself plays a huge role in how a home theater system

performs. A good design starts with room location, size and

shape, and also takes into consideration lighting, sight lines,

sound transmission, and many other factors. Learn how being

a good room designer can make you a better theater designer.

At the conclusion of this course, participants should be able to:

• Discuss room basics

• Determine form following function

• Identify construction considerations for isolation and

bass response

• Choose proper lighting for safety, convenience, and

aesthetics

Fundamentals of Home Theater Design —Instructor: Jeff

Gardner—This course is the starting point for all other train-

ing in home theater system design. At the conclusion of this

course, participants should be able to:

• Understand the history of home cinema

• List basic components and configurations

• Describe audio and video signal types and sources

Home Theater and Acoustics Part I— Instructor: Dr. Floyd

Toole—This is Part I of a comprehensive three-part series that

covers how loudspeakers perform inside rooms. This course

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SB Acoustics

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enables you to deliver the best possible results with your sur-

round sound system designs. At the conclusion of this course,

participants should be able to:

• Apply surround system design in the real world

• Select speaker type and placement for the best coverage

• Manage room modes and subwoofer placement

for smooth bass response

• Understand the basics of sound and sound reproduction

• Identify sound transmission and reflection in rooms

• Analyze room size and shape to predict performance

Advanced Home Theater Design Lab— Instructors: Anthony

Grimani, Rich Green, and Jeff Gardner—This session pro-

vides a high level theater design experience for professionals

who already have many projects under their belts. Some of

the top designers in the industry facilitate the hands-on design

process and share their expertise. Designs are discussed and

critiqued. Participants are expected to meet established indus-

try standards in their work, including:

Home Theater and Acoustics Part II —Instructor: Dr. Floyd

Toole—This is Part II of a comprehensive three-part series on

sound reproduction in rooms. Build on the knowledge from

Part I and explore how loudspeakers work, and how to imple-

ment surround sound for the best cinema experience possible.

At the conclusion of this course, participants should be able to:

• Design a theater room for high performance based

on client needs

• Predict and design to a room’s acoustical characteristics

• Address issues related to the interaction of the theater

with the rest of the home

• Create comprehensive documentation

• Identify surround sound configurations for different

audiences and room sizes

• Understand loudspeaker characteristics and performance

goals

• Differentiate between fact and fallacy with loudspeaker

specification

Home Theater Design All-Star Panel —Moderator: Jeff

Gardner; Panelists: Sam Cavitt, Anthony Grimani, and

Theo Kalomirakis—Join a panel of industry icons and learn

how they have overcome real-world challenges to successfully

complete high-profile projects. Discuss how to prevent these

problems in the future.

Home Theater and Acoustics Part III —Instructor: Dr. Floyd

Toole—This is the final installment in a comprehensive three-

part series on audio and acoustics in home theaters. Apply the

knowledge gained in the first two sessions to properly design

theater surround systems that meet the performance bench-

marks as well as the client’s budget and other constraints. At

the conclusion of this course, participants should be able to:

Acoustical Treatments —Instructor: Anthony Grimani—

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voice coil

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Photo 1: CEDIA Expo floor show

Photo 2: CEDIA Expo registration area

Despite all the attention given to loudspeakers, most of the

sound heard in a theater is reflected, rather than direct. Clearly,

the room surfaces must be treated as a system component. Get

the inside scoop on acoustical treatments of all types from one

of Expo’s favorite presenters!

Audio Technologies for Technicians —Instructor: Dennis

Erskine—Learn about the fundamentals of the science of

audio and acoustics, including technologies and formats.

Apply the knowledge gained from this course regarding audio

reproduction and room acoustics to provide a better listening

experience for customers. At the conclusion of this course,

participants should be able to:

• Calibrate a home theater audio system

CEDIA Expo has no doubt become the most important

show for home theater and distributed audio loudspeaker

manufacturers, so much so, that more than a few com-

panies have ceased exhibiting at CES in favor of CEDIA.

This year, one of the largest booths at the show, Runco,

is back. With some improvement in the overall CEDIA

target market, this year’s show will have a lot to offer

in terms of both education and exhibitors. The list of

loudspeaker manufacturers and other loudspeaker related

exhibitors at the 2011 CEDIA Expo includes: Adam Audio

USA, Altec Lansing, Artison, Atlantic Technology, Aton,

B&K Components, B&W Group, Bay Audio, BG Radia

Corps., Boston Acoustics, B&W Group, Canton, California

Audio Technology, Cambridge Audio, Control 4, Crestron

Electronics, Current Audio, Definitive Technology, DesignQ,

Earthquake Sound, Elan Home Systems, Epson America,

Focal JMLab, Genelec, Harman International, Induction

Dynamics, James Loudspeaker, KEF America, Klipsch Group,

Krell Industries, Leon Speakers, Linear LLC, Martin Logan,

MB Quart, MK Sound, Monitor Audio, Monster, Mordaunt-

Short, Niles Audio, NuVo Technologies, Paradigm, Parts

Express, Phase Technology, Pioneer Electronics, Polk Audio,

Pro Audio Technology, Procella Audio, Proficient Audio, PSB

Speakers, RBH Sound, Rives Audio, Rockustics, Russound,

Snap AV, Sonance, SpeakerCraft, Stealth Acoustics, Steinway

Lyngdorf, Sunfire, Tannoy, Terra Speakers, The AVC Group,

THX Ltd., Tivoli Audio, Totem Acoustic, Triad Speakers,

TRUAudio, Vandersteen Audio, Velodyne Acoustics, WBT,

• Understand how loudspeakers work and explain the

application of different types

• Describe the key concepts of surround sound technologies

• Discuss methods of distributing audio throughout home

• Explain the basic principles of room acoustics

Audio Set-Up and Calibration —Instructor: Gerry Lemay—

Explore the complex science of audio calibration within a

home theater setting. Participants receive the knowledge

required to effectively listen, properly utilize calibration

equipment, and efficiently perform an advanced home theater

audio calibration. At the conclusion of this course, partici-

pants should be able to:

• Explain how a good audio system should be designed

• List sound practices for system connections

• Operate audio calibration equipment and interpret data

Publisher - Hugo Van haecke

Editor - Vance Dickason

(E-mail vdc@northwest.com)

C. J. Abate.................Editorial Coordinator

Shannon Becker ..............Editorial Assistant

Shannon Barraclough ....Marketing Director

KC Prescott ...................................Graphics

Jeff Yanco ....................................Controller

Debbie Lavoie ..................Customer Service

Valerie Luster.....Administrative Coordinator

Submissions

Send all press releases and information to

Voice Coil, Segment, LLC Editorial Dept., 4

Park St., Vernon, CT 06066, or FAX us

material at (860) 871-0411, or e-mail

editorial@audioXpress.com.

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Please direct classified and artwork inquiries

to: Erica Fienman, Voice Coil , Segment, LLC,

4 Park St., Vernon, CT 06066, or FAX

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Voice Coil , ( ISSN 1521-091X ),

the Periodical of the Loudspeaker

Industry, is published monthly by

Segment, LLC, 4 Park St., Vernon,

CT 06066 USA, (860) 875-2199,

FAX (860) 871-0411.

Copyright 2011 by Segment, LLC. All

rights reserved. Quotation from Voice Coil

is forbidden without written permission of

the publisher.

september 2011 5

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