F. Alton Everest

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Cataloging-in-Publication Data is on file with the Library of Congress

Notices
DFR, ETC, QRD, RFZ, RPG, Abffusor, Diffractal, Diffusorblox, Flutterfree, Korner Killer,
Omniffusor, Triffusor
RPG Diffusor System, Inc.
651-C Commerce Drive
Upper Marlboro, MD 20772

Quick Sound Field, Tube Traps, Snap Traps
Acoustic Sciences Corporation
P.O. Box 1189
Eugene, OR 97440

Techron, Sound Lab, AcoustaEQ, TEF, EFC, ETC, FTC, EFTE
Techron Division of Crown International
1718 W. Mishwaka Rd.
Elkhart, IN 46517

Copyright (c) 2001 by The McGraw-Hill Companies, Inc.

All rights reserved. Printed in the United States of America. Except as permitted under the United States Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a data base or retrieval system, without the prior written permission of the publisher.

8 9 0 DOC/DOC 0 9 8 7 6 5

ISBN 0-07-136097-2

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Printed and bound by R.R. Donnelley & Sons...