Sound Absorption Coefficients And Reverberation Time Measurement
DOWNLOAD
Download Sound Absorption Coefficients And Reverberation Time Measurement PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Sound Absorption Coefficients And Reverberation Time Measurement book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Sound Absorption Coefficients And Reverberation Time Measurement
DOWNLOAD
Author : Wai Hong Chong
language : en
Publisher:
Release Date : 2008
Sound Absorption Coefficients And Reverberation Time Measurement written by Wai Hong Chong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Reverberation time categories.
Reverberation Time Measurements In An Underwater Chamber With And Without A Pressure Release Wall Covering
DOWNLOAD
Author : Richard J. Fridrich
language : en
Publisher:
Release Date : 1978
Reverberation Time Measurements In An Underwater Chamber With And Without A Pressure Release Wall Covering written by Richard J. Fridrich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with categories.
A number of acoustic measurements were made for determining the reverberation time and absorption characteristics of an underwater chamber with and without a pressure-release wall covering. Several analysis methods are described which were investigated and found to be unusable due to limited transient response time of analog filters. A digital analysis method is described which overcomes the transient response time limitation of analog filters by using Fast Fourier Transforms to approximate the desired filtering characteristics. An interactive computer program is described which implements an algorithm for determining the slope of the acoustic decay and, hence, the reverberation time in a consistent manner using linear, least-squares curve fitting. The reverberation times measured with the pressure-release wall covering were on the order of 110 milliseconds, while the values without the wall covering were on the order of 30 milliseconds. The introduction of the pressure-release wall covering into the underwater chamber was found to reduce the average sound absorption coefficients to values acceptable for a reverberation chamber based on air acoustics standards. (Author).
Reverberation Time In Dead Rooms
DOWNLOAD
Author : Carl Ferdinand Eyring
language : en
Publisher:
Release Date : 1930
Reverberation Time In Dead Rooms written by Carl Ferdinand Eyring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1930 with Architectural acoustics categories.
Novel Method Of Determination Of Absorption Coefficient
DOWNLOAD
Author : G. J. McNulty
language : en
Publisher:
Release Date : 1998
Novel Method Of Determination Of Absorption Coefficient written by G. J. McNulty and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Room acoustics has as the key parameter, the absorption coefficient. Traditionally this parameter is obtained by measurement of the reverberation time (RT) which can be long and laborious. This paper avoids a frontal attack on the protracted RT measurement. By measuring the decay of sound from a point source in an enclosed area or known geometry. A family of curves representing the absorption over the entire range of coefficients is used to match the decay of sound already measured. The matching absorption coefficient will then correspond to the absorption of the room. The efficacy of the method is endorsed by the results of two separate in investigations. The entire investigation was carried out in a well acoustically investigated main hall at The Institute Technology Tun Hussein Onn(ITTHO) where the RT has shown a convincing repeatability over some twelve separate investigations. [Authors' abstract].
Acoustics
DOWNLOAD
Author : International Organization for Standardization
language : en
Publisher:
Release Date : 1997
Acoustics written by International Organization for Standardization and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Acoustical engineering categories.
Measurement Of Sound Absorption Coefficients
DOWNLOAD
Author : Paul Earls Sabine
language : en
Publisher:
Release Date : 1929
Measurement Of Sound Absorption Coefficients written by Paul Earls Sabine and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1929 with Sound categories.
Engineering Acoustics
DOWNLOAD
Author : Malcolm J. Crocker
language : en
Publisher: John Wiley & Sons
Release Date : 2021-01-11
Engineering Acoustics written by Malcolm J. Crocker and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-11 with Technology & Engineering categories.
ENGINEERING ACOUSTICS NOISE AND VIBRATION CONTROL A masterful introduction to the theory of acoustics along with methods for the control of noise and vibration In Engineering Acoustics: Noise and Vibration Control, two experts in the field review the fundamentals of acoustics, noise, and vibration. The authors show how this theoretical work can be applied to real-world problems such as the control of noise and vibration in aircraft, automobiles and trucks, machinery, and road and rail vehicles. Engineering Acoustics: Noise and Vibration Control covers a wide range of topics. The sixteen chapters include the following: Human hearing and individual and community response to noise and vibration Noise and vibration instrumentation and measurements Interior and exterior noise of aircraft as well as road and rail vehicles Methods for the control of noise and vibration in industrial equipment and machinery Use of theoretical models in absorptive and reactive muffler and silencer designs Practical applications of finite element, boundary element and statistical energy analysis Sound intensity theory, measurements, and applications Noise and vibration control in buildings How to design air-conditioning systems to minimize noise and vibration Readers, whether students, professional engineers, or community planners, will find numerous worked examples throughout the book, and useful references at the end of each chapter to support supplemental reading on specific topics. There is a detailed index and a glossary of terms in acoustics, noise, and vibration.
Acoustic Absorbers And Diffusers
DOWNLOAD
Author : Trevor J. Cox
language : en
Publisher: CRC Press
Release Date : 2009-01-26
Acoustic Absorbers And Diffusers written by Trevor J. Cox and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-01-26 with Architecture categories.
Absorbers and diffusers are two of the main design tools for altering the acoustic conditions of rooms, semi-enclosed spaces and the outdoor environment. Their correct use is important for delivering high quality acoustics. Unique and authoritative, this book decribes how to effectively measure, model, design and apply diffusers and absorbers. It is a resource for new and experienced acousticians, seeking an understanding of the evolution, characteristics and application of modern diffusers. Absorption is a more established technology and so the book blends traditional designs with modern developments. The book covers practical and theoretical aspects of absorbers and diffusers and is well illustrated with examples of installations and case studies. This new edition brings Acoustic Absorbers and Diffusers up-to-date with current research, practice and standards. New developments in measurement, materials, theory and practice since the first edition (published in 2004) are included. The sections on absorbers are extended to include more about noise control.
Noise Control
DOWNLOAD
Author : Colin H. Hansen
language : en
Publisher: CRC Press
Release Date : 2018-09-03
Noise Control written by Colin H. Hansen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-03 with Technology & Engineering categories.
Noise Control: From Concept to Application presents the basic principles of noise control and their practical application to real problems. Numerous examples are worked out in detail and are used to illustrate the concepts in the book. There are few derivations of equations, but reference is made to texts from which these are derived. An excellent learning tool for students and practitioners, this guide to noise control will enable readers to use their knowledge to solve a wide range of industrial noise control problems. Working from basic scientific principles, the author shows how an understanding of sound can be applied to real-world settings.
Noise And Vibration Control In Automotive Bodies
DOWNLOAD
Author : Jian Pang
language : en
Publisher: John Wiley & Sons
Release Date : 2018-10-05
Noise And Vibration Control In Automotive Bodies written by Jian Pang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-05 with Technology & Engineering categories.
A comprehensive and versatile treatment of an important and complex topic in vehicle design Written by an expert in the field with over 30 years of NVH experience, Noise and Vibration Control of Automotive Body offers nine informative chapters on all of the core knowledge required for noise, vibration, and harshness engineers to do their job properly. It starts with an introduction to noise and vibration problems; transfer of structural-borne noise and airborne noise to interior body; key techniques for body noise and vibration control; and noise and vibration control during vehicle development. The book then goes on to cover all the noise and vibration issues relating to the automotive body, including: overall body structure; local body structure; sound package; excitations exerted on the body and transfer functions; wind noise; body sound quality; body squeak and rattle; and the vehicle development process for an automotive body. Vehicle noise and vibration is one of the most important attributes for modern vehicles, and it is extremely important to understand and solve NVH problems. Noise and Vibration Control of Automotive Body offers comprehensive coverage of automotive body noise and vibration analysis and control, making it an excellent guide for body design engineers and testing engineers. Covers all the noise and vibration issues relating to the automotive body Features a thorough set of tables, illustrations, photographs, and examples Introduces automotive body structure and noise and vibration problems Pulls together the diverse topics of body structure, sound package, sound quality, squeak and rattle, and target setting Noise and Vibration Control of Automotive Body is a valuable reference for engineers, designers, researchers, and graduate students in the fields of automotive body design and NVH.