Theatre Design & Technology - May 1974 - 34

BOO K REVlEW S,

---:....:.T
O.:.:...:.N
Y...:.;CO:.:.:UR.:..:..:.TA:.:.:,D
E
of the reader

ENVIRONMENTAL ACOUSTICS
by Leslie L. Doelle
McGraw-Hili Book Company, 1972

contain a minimum of theory
prov ide practical
references

pp. x + 246
$18.50

The past few years have seen the advent of numerous
books on the subject of acoustics in general and
architectural acoustics in particular. Two of the most
recent offerings are Evnironmental Acoustics by Leslie L.
Doelle and Concepts in Architectural Acoustics by David
Egan. The trend of the publications on architectural
acoustics has been directed more and more towards the
practical aspects of acoustics and acoustical design and
away from the highly theoretical works previously
necessary to advance the state ot the science to its present
level. I n this spirit, these two books present no new
material to anyone familiar with acoustics, instead each,
in its own way, attempts to distill a vast wealth of
acoustical material into a readily usable sourcebook of
practical ideas, examples, applications, and approaches.
As stated in the preface of each book, these
pu b I i cations are intended for use primarily by
practitioners in the building and design
professions-architects, designers, and students. Each
presents its information well, with clarity and an
abundance of supporting illustrations, tables, and
appendices and almost no acoustical theory. The major
difference between these two books, however, is the
widely different approaches the authors take in presenting
their material. This difference is evidenced by the fact
that both of these books have been published by the same
publisher, in the same year, on the same subject, and in
the same price range. Obviously, there must be some
difference between the two, and there is.

Environmental Acoustics was written by Leslie Doelle
whose background for the past 20 years is primarily that
of a practicing acoustical consultant. H is
first
publication, Acoustics in Architectural Design, was an
exceptionally well-referenced work and was published in
1965 by the National Research Council of Canada. His
previous experience and background have apparently
served Mr. Doelle well in the preparation of this book. As
stated in the preface, Doelle set for himself five basic
requirements for the writing of his book. It should:

34

with

ample

provide illustrations of materials and details

CONCEPTS IN ARCHITECTURAL ACOUSTICS
by M. David Egan
McGraw-Hili Book Company, 1972
pp. xvii + 200
$16.50

-

recommendations

require no previous acoustical experience on the part

~

enable the reader to solve simple acoustical problems
by himself
For the most part these requirements have been faithfully
followed.
The book is divideo into four major parts. The first
presents a general discussion of acoustics and includes an
interesting capsule history of the development of the
theatre through the ages from the standpoint of acoustics.
Part Two deals with the acoustical requirements and
characteristics of various spaces and it is this area of
concern which is apparently closest to the heart of the
author since this section by itself accounts for 50% of the
entire book. Besides discussing the general acoustical
requirements for performing spaces, Part Two also
includes individual chapters on the design of specific types
of spaces such as general theatre spaces, drama spaces,
music spaces, and a variety of studio spaces. Also included
is an interesting chapter on correcting deficient acoustical
properties in existing auditoria.
Part Three discusses the various aspects of controlling
unwanted noise, both airborne and structure-borne and
also includes a chapter dealing with typical noise c;ntrol
problems encountered in specific space types. Part Four
presents general information on detailing, specification,
and supervision related to the acoustics of a space.
Included in the appendices is useful information on the
absorption characteristics of common materials and the
sound isolating properties of various building construction
systems.
All in all, this book is quite worthwhile for anyone
interested in the acoustics of spaces. It is basically a
practical book with severely limited theory and is
certainly not for the technically minded person. It does
contain excellent graphics and is profusely illustrated with
good sketches and photographs of numerous halls and
theatres. Also of value is the large amount of statistical
data on existing theatres and concert halls. Hopefully the
title will not throw any potential reader off the track
since in common usage "environmental" acoustics is an
all-encompassing term referring to the acoustics of the
exterior environment in general, i.e. transportation noise
or other site planning problems, instead of referring to the
types of controlled, interior environment with which the
author deals.

Concepts in Architectural Acoustics is written by M.
David Egan who is an associate professor of arch itecture
with several years experience as an acoustical consultant.

THEATRE DESIGN AND TECHNOLOGY

MAY.1974



Table of Contents for the Digital Edition of Theatre Design & Technology - May 1974

Contents
Theatre Design & Technology - May 1974 - 1
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