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Propagation Of Sound In Air
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Book Synopsis Propagation of Sound in Air by : John W. Wescott
Download or read book Propagation of Sound in Air written by John W. Wescott and published by . This book was released on 1965 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography contains several thousand abstracts from the unclassified literature on the propagation of sound in air. The subject is treated in depth for the years 1929 to 1963. Some abstracts on earlier works of lasting interest and many abstracts from English translations of foreign journals are included. The abstracts are grouped according to subject matter. Subject and author indexes are furnished. Accessions Document (AD and earlier ATI) numbers used by both the Defense Documentation Center (formerly ASTIA) and the Office of Technical Services (OTS) are furnished wherever possible. (Author).
Book Synopsis Springer Handbook of Acoustics by : Thomas Rossing
Download or read book Springer Handbook of Acoustics written by Thomas Rossing and published by Springer Science & Business Media. This book was released on 2007-06-21 with total page 1179 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an unparalleled modern handbook reflecting the richly interdisciplinary nature of acoustics edited by an acknowledged master in the field. The handbook reviews the most important areas of the subject, with emphasis on current research. The authors of the various chapters are all experts in their fields. Each chapter is richly illustrated with figures and tables. The latest research and applications are incorporated throughout, including computer recognition and synthesis of speech, physiological acoustics, diagnostic imaging and therapeutic applications and acoustical oceanography. An accompanying CD-ROM contains audio and video files.
Book Synopsis Basic of sound and hearing by : prof.ibrahim elnoshokaty
Download or read book Basic of sound and hearing written by prof.ibrahim elnoshokaty and published by ibrahim elnoshokaty. This book was released on with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sound Propagation Sound propagates through air as a longitudinal wave. The speed of sound is determined by the properties of the air, and not by the frequency or amplitude of the sound. Sound waves, as well as most other types of waves, can be described in terms of the following basic wave phenomena.
Book Synopsis Musical Sound, Instruments, and Equipment by : Panos Photinos
Download or read book Musical Sound, Instruments, and Equipment written by Panos Photinos and published by Morgan & Claypool Publishers. This book was released on 2017-12-20 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Musical Sound, Instruments, and Equipment' offers a basic understanding of sound, musical instruments and music equipment, geared towards a general audience and non-science majors. The book begins with an introduction of the fundamental properties of sound waves, and the perception of the characteristics of sound. The relation between intensity and loudness, and the relation between frequency and pitch are discussed. The basics of propagation of sound waves, and the interaction of sound waves with objects and structures of various sizes are introduced. Standing waves, harmonics and resonance are explained in simple terms, using graphics that provide a visual understanding.
Book Synopsis Propagation of Sound in Air by : University of Michigan. Institute of Science and Technology
Download or read book Propagation of Sound in Air written by University of Michigan. Institute of Science and Technology and published by . This book was released on 1965 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Propagation of Sound in Porous Media by : J.F. Allard
Download or read book Propagation of Sound in Porous Media written by J.F. Allard and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has grown out of the research activities of the author in the fields of sound propagation in porous media and modelling of acoustic materials. It is assumed that the reader has a background of advanced calculus, including an introduction to differential equations, complex variables and matrix algebra. A prior exposure to theory of elasticity would be advantageous. Chapters 1-3 deal with sound propagation of plane waves in solids and fluids, and the topics of acoustic impedance and reflection coefficient are given a large emphasis. The topic of flow resistivity is presented in Chapter 2. Chapter 4 deals with sound propagation in porous materials having cylindrical pores. The topics of effective density, and of tortuosity, are presented. The thermal exchanges between the frame and the fluid, and the behaviour of the bulk modulus of the fluid, are described in this simple context. Chapter 5 is concerned with sound propagation in other porous materials, and the recent notions of characteristic dimensions, which describe thermal exchanges and the viscous forces at high frequencies, are introduced. In Chapter 6, the case of porous media having an elastic frame is considered in the context of Biot theory, where new topics described in Chapter 5 have been included.
Book Synopsis On the Propagation of Sound in the Free Atmosphere and the Acoustic Efficiency of Fog-signal Machinery: an Account of Experiments Carried Out at Father Point, Quebec, September, 1913 by : Louis Vessot King
Download or read book On the Propagation of Sound in the Free Atmosphere and the Acoustic Efficiency of Fog-signal Machinery: an Account of Experiments Carried Out at Father Point, Quebec, September, 1913 written by Louis Vessot King and published by . This book was released on 1919 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Propagation of Sound in Air, in Solids, and in Liquids by : S. A. Dyment
Download or read book The Propagation of Sound in Air, in Solids, and in Liquids written by S. A. Dyment and published by . This book was released on 1930 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sound Propagation in Air by : Lars R. Hole
Download or read book Sound Propagation in Air written by Lars R. Hole and published by . This book was released on 1994 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Propagation of Sound in a Stream of Air Flowing in a Duct by : Ahmed Mahmoud Youssef
Download or read book Propagation of Sound in a Stream of Air Flowing in a Duct written by Ahmed Mahmoud Youssef and published by . This book was released on 1959 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research on Sound Propagation in Sound-absorbent Ducts with Superimposed Air Streams by : Universität Göttingen. Drittes Physikalisches Institut
Download or read book Research on Sound Propagation in Sound-absorbent Ducts with Superimposed Air Streams written by Universität Göttingen. Drittes Physikalisches Institut and published by . This book was released on 1962 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sound Propagation Near the Earth's Surface as Influenced by Weather Conditions by : H. J. Sabine
Download or read book Sound Propagation Near the Earth's Surface as Influenced by Weather Conditions written by H. J. Sabine and published by . This book was released on 1961 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Air-to-ground Sound Propagation Using an Instrumented Meteorological Tower by : Peter K. Kasper
Download or read book A Study of Air-to-ground Sound Propagation Using an Instrumented Meteorological Tower written by Peter K. Kasper and published by . This book was released on 1975 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Sound Propagation in Air by : Henry E. Bass
Download or read book Study of Sound Propagation in Air written by Henry E. Bass and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes research on sound absorption performed over a three-year period. This research included measurements of the rotational relaxation time in air at elevated temperatures and measurements of the vibrational relaxation of water vapor during collisions with water vapor, oxygen, nitrogen, and argon. As a result of these measurements the range of temperatures over which these basic physical properties can be accurately predicted over the temperature range normally encountered on the surface of the earth. References to the work published in the open literature is given as well as a brief description of how this work contributed to the development of a new procedure to predict sound absorption in still air.
Book Synopsis The Theory of Sound by : John William Strutt Baron Rayleigh
Download or read book The Theory of Sound written by John William Strutt Baron Rayleigh and published by . This book was released on 1896 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hearing Loss by : National Research Council
Download or read book Hearing Loss written by National Research Council and published by National Academies Press. This book was released on 2004-12-17 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Millions of Americans experience some degree of hearing loss. The Social Security Administration (SSA) operates programs that provide cash disability benefits to people with permanent impairments like hearing loss, if they can show that their impairments meet stringent SSA criteria and their earnings are below an SSA threshold. The National Research Council convened an expert committee at the request of the SSA to study the issues related to disability determination for people with hearing loss. This volume is the product of that study. Hearing Loss: Determining Eligibility for Social Security Benefits reviews current knowledge about hearing loss and its measurement and treatment, and provides an evaluation of the strengths and weaknesses of the current processes and criteria. It recommends changes to strengthen the disability determination process and ensure its reliability and fairness. The book addresses criteria for selection of pure tone and speech tests, guidelines for test administration, testing of hearing in noise, special issues related to testing children, and the difficulty of predicting work capacity from clinical hearing test results. It should be useful to audiologists, otolaryngologists, disability advocates, and others who are concerned with people who have hearing loss.
Book Synopsis The Propagation of Low Frequency Sound Through an Audience by : Elena Shabalina
Download or read book The Propagation of Low Frequency Sound Through an Audience written by Elena Shabalina and published by Logos Verlag Berlin GmbH. This book was released on 2014 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: At large outdoor concerts or festivals subwoofers, the dedicated low frequency loudspeakers, are often placed in a row in front of the stage as an evenly spaced array in order to control the directivity of sound at low frequencies. The audience itself often stands tightly packed in front of the array, so that sound waves propagate partly through the audience and partly over it. This thesis presents an investigation on how exactly the presence of the audience influences the propagation of sound. A mathematical model of an audience as an equivalent fluid is constructed with the help of the porous medium theory. The equivalent fluid parameters, such as the wave impedance, the speed of sound and the reflection coefficient from the audience/air boundary, are calculated both for a constant and a variable concentration of an audience. The model is verified by a Boundary Element Method simulation, scale measurements and live concert measurements. A new live measurement method is developed to evaluate the low frequency sound pressure level distribution without disturbing the ongoing event. The study reaches the conclusion that at low frequencies an audience forms a medium with the impedance significantly different from the impedance of the air, which leads to the reflection of sound waves from the boundaries back into the audience and increase of the sound pressure level as well as interference effects. Possible applications of the findings are mainly sound system design and event planning.
