Electroacoustics
Features
- Offers a modern introduction to loudspeaker and microphone engineering design principles
- Covers a broad range of topics, including arrays, planar transducers, radiation impedance, loudspeaker enclosure design, and more
- Supplies background material on electrical circuits and filters, sound absorbers, and room acoustics
- Explains how the rooms in which transducers are used influence their acoustical behavior and how those properties are accessed
- Includes study questions and problems
- Contains more than 1,220 illustrations
A solutions manual and figure slides are available upon qualifying course adoption.
Summary
Electroacoustic devices such as microphones and loudspeakers are used everywhere from cars and mobile phones to homes, places of worship, and sports arenas. They are a key part of the modern communication society, helping to transmit information to our ears. A contemporary introduction to the subject, Electroacoustics explains the scientific and engineering principles behind the design of these sound transducers. It also examines the compromises that are necessary when designing transducers for use in the real world.
Learn about Ultrasonic Transducers, Loudspeaker Enclosure Design, and More
This accessible textbook book is based on the author’s extensive experience teaching electroacoustics to advanced graduate and graduate students. He uses the concept of electrical circuit analogies to help readers quickly grasp the fundamentals of acoustical and mechanical systems. The book covers both traditional electrodynamic audio and ultrasonic transducers and includes up-to-date material on arrays, planar transducers, loudspeaker enclosure design, and more. To meet the needs of a broad range of readers, the book also includes background material on room acoustics, electrical circuits, and electrical filters. Electroacoustic theory is explained in an easy-to-read style without resorting to matrix theory. Throughout, a wealth of illustrations and exercises make the ideas more concrete.
Get a Solid Foundation in Electroacoustic Engineering Principles
The book emphasizes multidisciplinary engineering principles, preparing students for the broad range of applications they may encounter in their research as well as later in their careers. The modern treatment of transducers also makes this a valuable reference for transducer designers, acoustical consultants, hobbyists, and anyone involved in electroacoustic design.
Table of Contents
Introduction
Introduction to Electroacoustic Systems
Sound and Its Properties
Waves in Membranes and Plates
Circuits and Circuit Components
Electromechanical Analogies
Electroacoustical Analogies
Conversion between Analogies
Transducer Operating Principles
Radiation and Impedance
Sound Source and Acoustic Environment
Directivity
Microphone and Sound Field
Microphones
Electrodynamic Loudspeaker Drivers
Baffle and Box
Vented Box Loudspeakers
Transmission Line Loudspeakers
Horns
Gradient Loudspeakers
Drivers Using Flexible Diaphragms
Multiway Loudspeakers
Active Loudspeakers
Headphones and Earphones
High-Frequency Transducers
Appendix A: Introduction to Electric Components and Classic Circuit Theory
Appendix B: Filters and Filter Functions
Appendix C: Magnetic Fields and Forces
Appendix D: Time-Domain Approach to Directivity
Appendix E: Sound-Absorbing Materials
Appendix F: Resonance in Boxes and Rooms
Appendix G: Level Definitions
Index
Author Bio(s)
Mendel Kleiner is Professor Emeritus at Chalmers University of Technology, Gothenburg, Sweden, and head of the Chalmers Room Acoustics Group. Before his retirement, Dr. Kleiner taught room acoustics, audio, electroacoustics, and ultrasonics in the Chalmers Master Program on Sound and Vibration in the Division of Applied Acoustics. After retiring, he continues his research in acoustics, as well as teaching and consulting. He has authored or coauthored more than 55 publications and 110 papers, including two books. He has presented many keynote lectures, led courses at international conferences on acoustics and noise control, and organized an international conference on acoustics. His main research areas include electroacoustics and audio, computer simulation of room acoustics, electroacoustic room acoustics enhancement, room acoustics of auditoria and small rooms, sound and vibration measurement technology, product sound quality, psychoacoustics, and musical acoustics. He is a fellow of the Acoustical Society of America, serves on the Audio Engineering Society’s Standards Committee on Acoustics, and was chair of its Technical Committee on Acoustics and Sound Reinforcement for 20 years.
Editorial Reviews
"Finally a modern alternative to the classical books on electroacoustics. The powerful technique of electrical analogous circuits is used for the analysis of microphones, loudspeakers and headphones. Theory as well as practical aspects are covered in this book by an author with decades of experience in teaching, research and practical applications. The inclusion of exercises makes this a great textbook for university teachers. Electroacoustics is a great topic for attracting students to acoustics, and this modern textbook will serve well in that role."
—Peter Svensson, Norwegian University of Science and Technology (NTNU)
"This book includes comprehensive coverage pertinent to fundamentals of electroacoustics, the latest knowledge pertaining to electroacoustics. Logically divided subtopics are arranged in separate chapters. Each chapter also features review questions and detailed, individual problems at the end of the chapter, suitable for university-level (both under- and graduate) course teaching or even self-study. Many basic theoretical concepts are explained with the help of a minimal amount of math, accessible to many students or audio engineers."
—Ning Xiang, Rensselaer Polytechnic Institute, New York, USA
