Basic of sound and hearing: Part 3 Acoustic Theory PDF Download
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Author: prof.ibrahim elnoshokaty
Publisher: ibrahim elnoshokaty
ISBN:
Category : Science
Languages : en
Pages : 215
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Book Description
acoustics thoary is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or marking territories. Art, craft, science and technology have provoked one another to advance the whole, as in many other fields of knowledge
Author: prof.ibrahim elnoshokaty
Publisher: ibrahim elnoshokaty
ISBN:
Category : Science
Languages : en
Pages : 215
Get Book Here
Book Description
acoustics thoary is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or marking territories. Art, craft, science and technology have provoked one another to advance the whole, as in many other fields of knowledge
Author: professor Ibrahim elnoshokaty
Publisher: ibrahim elnoshokaty
ISBN:
Category : Science
Languages : en
Pages : 1018
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Book Description
In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.[1] Only acoustic waves that have frequencies lying between about 20 Hz and 20 kHz, the audio frequency range, elicit an auditory percept in humans. In air at atmospheric pressure, these represent sound waves with wavelengths of 17 meters (56 ft) to 1.7 centimeters (0.67 in). Sound waves above 20 kHz are known as ultrasound and are not audible to humans. Sound waves below 20 Hz are known as infrasound. Different animal species have varying hearing ranges. Acoustics is the interdisciplinary science that deals with the study of mechanical waves in gasses, liquids, and solids including vibration, sound, ultrasound, and infrasound. A scientist who works in the field of acoustics is an acoustician, while someone working in the field of acoustical engineering may be called an acoustical engineer.[2] An audio engineer, on the other hand, is concerned with the recording, manipulation, mixing, and reproduction of sound. Applications of acoustics are found in almost all aspects of modern society, subdisciplines include aeroacoustics, audio signal processing, architectural acoustics, bioacoustics, electro-acoustics, environmental noise, musical acoustics, noise control, psychoacoustics, speech, ultrasound, underwater acoustics, and vibration.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309092965
Category : Social Science
Languages : en
Pages : 321
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Book Description
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.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 950
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Book Description
Author: United States. Office of Noise Abatement and Control
Publisher:
ISBN:
Category : Noise control
Languages : en
Pages : 92
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Book Description
Author: Henning Reetz
Publisher: John Wiley & Sons
ISBN: 1118712870
Category : Language Arts & Disciplines
Languages : en
Pages : 393
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Book Description
An accessible yet in-depth introductory textbook on the basic concepts of phonetics, fully updated and revised This broad, interdisciplinary textbook investigates how speech can be written down, how speech is produced, its acoustic characteristics, and how listeners perceive speech. Phonetics: Transcription, Production, Acoustics, and Perception introduces readers to the fundamental concepts of the discipline, providing coverage of all four areas of phonetics. This comprehensive textbook also familiarizes readers with concepts from other disciplines related to phonetics—such as physiology, anatomy, and psychology—through relatable, real-life examples. Now in its second edition, the text has been substantially revised to improve clarity and currency, based on student feedback received by the authors over the past decade. Brief “Nutshell” introductions have been added to all chapters to provide a clear overview of key points within the body of the text. Expanded content to this new edition examines voice quality, the acoustic correlates of different phonation types, intonation, and different theories of speech perception. Written in a clear and concise style by two of the field’s leading scholars, this textbook: Covers related relevant areas, including vocal fold vibration and the physiology of the ear Offers examples from other languages to highlight aspects of phonetics not found in English Includes chapter-by-chapter exercises, engaging illustrations, and a detailed glossary Features a companion website containing additional resources such as figures and sound files Phonetics: Transcription, Production, Acoustics, and Perception, 2nd Edition is an ideal text for both introductory and advanced courses in phonetics and speech science, general linguistics, related disciplines such as psychology, speech pathology, and audiology, and for anyone interested to learn about how we speak and hear.
Author: Mendel Kleiner
Publisher: J. Ross Publishing
ISBN: 1604270527
Category : Medical
Languages : en
Pages : 481
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Book Description
Acoustics and Audio Technology, Third Edition, is an introductory text for students of sound and vibration as well as electrical and electronic engineering, civil and mechanical engineering, computer science, signals and systems, and engineering physics. A basic knowledge of basic engineering mathematics and physics is assumed. Problems are included at the end of the chapters and a solutions manual is available to instructors. This classroom-tested book covers the physical background to and mathematical treatment of sound propagation, the properties of human hearing, the generation and radiation of sound as well as noise control, and the technologies used for pickup, recording, and reproduction of sound in various environments, and much more. Key Features: --Presents a basic short course on acoustics, fundamental equations, and sound propagation --Discusses the principles of architectural acoustics, techniques for adjusting room acoustics, and various types of sound absorbers --Offers an overview of the acoustical, mechanical, and electrical properties of loudspeakers and microphones, which are important transducers --Provides an overview of the properties of hearing and voice --Includes end-of-chapter problems and solutions available to instructors as WAV material
Author: David A. Bies
Publisher: CRC Press
ISBN: 0415267145
Category : Technology & Engineering
Languages : en
Pages : 745
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Book Description
The third edition of Engineering Noise Control has been thoroughly revised, updated and extended. Each chapter contains new material, much of which is not available elsewhere. The result is a comprehensive discussion of the theoretical principles and concepts of acoustics and noise control, a detailed discussion of the hearing mechanism, noise measuring instrumentation and techniques, noise criteria, sound source characterization and emission, outdoor sound propagation, sound in rooms, sound transmission through partitions, enclosure design, dissipative and reactive mufflers, vibration isolation, equipment sound power emission calculations and active noise cancellation. The book is an excellent text for advanced undergraduate or graduate students of acoustic and noise control, and it also contains essential information and prediction techniques that make it an invaluable resource for the practitioner.
Author: Jonathan Sterne
Publisher: Duke University Press
ISBN: 0822352877
Category : Computers
Languages : en
Pages : 359
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Book Description
Jonathan Sterne shows that understanding the historical meaning of the MP3, the world's most common format for recorded audio, involves rethinking the place of digital technologies in the broader universe of twentieth-century communication history.
Author: Raymond D. Kent
Publisher: Plural Publishing
ISBN: 1635504597
Category : Medical
Languages : en
Pages : 513
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Book Description
Written by renowned basic and clinical scientist, Raymond D. Kent, the Handbook on Children’s Speech: Development, Disorders, and Variations provides comprehensive and systematic coverage of the topic of how speech develops and how it can be disordered or otherwise, a departure from typical patterns of a mainstream dialect. The book emphasizes relevant biology and psychology of speech development; contemporary models of spoken language; typical speech development; bilingualism and dialect; motor learning and motor control; clinical assessments of articulation, phonology, voice, prosody, and intelligibility; populations in which speech disorders and differences often occur; and methods and strategies for prevention and treatment. The Handbook covers both speech development and pediatric speech disorders focusing on the ages of birth to puberty. Because speech disorders in children occur against a complex developmental background, the understanding of these disorders requires knowledge about how speech develops and how it is affected in children with disorders or with exposure to languages other than American English. A major theme of the book is that speech development is a constructive, goal-directed phenomenon that weaves together several different processes having their own individual trajectories that generally reach maturity only in puberty or adolescence. For clinicians, researchers, and students, this book will serve as a valuable compendium of the many different tools and methods that have been developed to study speech development in diverse populations and to assess and treat speech disorders and variations.
