Adopting a multi-disciplinary approach to the practice of achieving a more acceptable acoustic environment, this book draws on the same basic principles to cover both the outdoors and indoor space. It starts with the fundamentals of sound waves and hearing and goes on to the measurement of noise and vibration, room acoustics, sound absorption, airborne sound insulation and noise and vibration control.
This serves as a foundation reference for students of architecture and environmental engineering, including those new to the study of acoustics. Problem-solving exercises are provided at the end of each chapter. The authors focus on techniques, methods and standards and lead into further more specialized material which makes the book useful for more advanced students and professional engineers.
Fundamentals of Sound Waves and Hearing. Sound Waves. Speed of Sound. Impetence. Noise and Vibration – Measurement and Rating. Measurement of Sound/Noise. Noise Rating. Measurement of Vibration. Room Acoustics. Sound Field in a Room. Normal Modes of Vibration in Rooms. Reverberation Time. Sound Absorption – Materials and Construction. Types of Sound Absorption Mechanisms. Measurement of Absorption Coefficient and Acoustic Impetence. Characteristics of Porous Sound Absorber. Airborne Sound Insulation. Propagation and Transmission of Airborne Sound. Measurement and Rating of Airborne Sound Insulation. Mass Law for Sound Insulation of a Single Wall. Isolation of Structure-borne Noise and Vibration. Propagation and Radiation of Structure-borne Sound. Reduction of Structure-borne Noise. Measurement and Rating of Impact Sound Insulation. Noise and Vibration Control in the Environment. Basic Strategy. Determination of Required Reduction. Plan for Dealing with Noise and Vibration Sources. Acoustic Design of Rooms. Design Target. Design of Room Shape. Planning the Reverberation. Electro-acoustic systems. Function and Aim of Electro-acoustic Systems. Reinforcement Systems and Architectural Design. Prevention of Howling. Agenda. Wave Equation. Analogues in Electrical, Mechanical and Acoustic Systems and Time Constant. Fourier Transformation and Correlation Functions.