Waveform Analysis Of Sound

Author : Mikio Tohyama
Publisher : Springer
Page : 229 pages
File Size : 43,6 Mb
Release : 2015-01-10
Category : Technology & Engineering
ISBN : 9784431544241

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Waveform Analysis of Sound by Mikio Tohyama Pdf

What is this sound? What does that sound indicate? These are two questions frequently heard in daily conversation. Sound results from the vibrations of elastic media and in daily life provides informative signals of events happening in the surrounding environment. In interpreting auditory sensations, the human ear seems particularly good at extracting the signal signatures from sound waves. Although exploring auditory processing schemes may be beyond our capabilities, source signature analysis is a very attractive area in which signal-processing schemes can be developed using mathematical expressions. This book is inspired by such processing schemes and is oriented to signature analysis of waveforms. Most of the examples in the book are taken from data of sound and vibrations; however, the methods and theories are mostly formulated using mathematical expressions rather than by acoustical interpretation. This book might therefore be attractive and informative for scientists, engineers, researchers, and graduate students who are interested in the mathematical representation of signals and the applications of Fourier analysis. The book can be described as being practically self-contained but does assume readers are familiar with introductory topics in discrete signal processing, as in the discrete Fourier transform. Hence this book might be also usable as a textbook in graduate courses in applied mathematics on topics such as complex functions. Almost all scientific phenomena are sensed as waves propagating in some space. Over the years, waveform analysis has therefore been one of the resilient academic areas of study and still is seen as fertile ground for development. In particular, waveform analysis based on the theory of linear systems would be a good example where a physical interpretation can be given to the mathematical theory of complex functions in terms of magnitude, angle, poles, and zeros of complex functions. For readers who are interested in the physical aspects of sound and vibration data or elementary formulation of wave equations and their solutions, the book Sound and Signals by M. Tohyama (Springer 2011) is recommended. It can serve as a complementary companion to this present volume or independently as a good reference.

Author : Mikio Tohyama
Publisher : Springer Science & Business Media
Page : 394 pages
File Size : 53,8 Mb
Release : 2011-06-12
Category : Technology & Engineering
ISBN : 3642201229

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Sound and Signals by Mikio Tohyama Pdf

This is an up-to-date reference and textbook on modern acoustics from a signal-theoretic point of view, as well as a wave-theoretic approach for students, engineers, and researchers. It provides readers the fundamental basis of acoustics and vibration science and proceeds up to recent hot topics related to acoustic transfer functions and signal analysis including a perceptual point of view. In the first part, the work uniquely introduces into the fundamentals without using heavy mathematics The following, advanced chapters deal with new and deep insights into acoustic signal analysis and investigation of room transfer functions based on the poles and zeros.

Author : Vitale Abagnali,Giampaolo Fabbri
Publisher : Unknown
Page : 0 pages
File Size : 45,7 Mb
Release : 2012
Category : Sound-waves
ISBN : 161470001X

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Sound Waves by Vitale Abagnali,Giampaolo Fabbri Pdf

In this book, the authors present current research in the study of the propagation, frequency and effects of sound waves. Topics discussed include time resolved visualisation and analysis on a single short acoustic wave generation; elastic vibrations of an isotropic plate with laser-induced atomic defects; sound velocity into turbulent medium; infrasound generation by turbulent convection; neutrons diffraction in a crystal under the influence of a sound wave; and, the transformation of sound waves in non-stationary media.

Author : Mikio Tohyama
Publisher : Springer
Page : 324 pages
File Size : 41,7 Mb
Release : 2017-11-01
Category : Technology & Engineering
ISBN : 9789811058899

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Sound in the Time Domain by Mikio Tohyama Pdf

This book addresses the nature of sound, focusing on the characteristics of sound waves in the context of time structures. This time domain approach provides an informative and intuitively understandable description of various acoustic topics such as sound waves travelling in an acoustic tube or in other media where spectral or modal analysis can be intensively performed. Starting from the introductory topic of sinusoidal waves, it discusses the formal relationship between the time and frequency domains, summarizing the fundamental notions of Fourier or z-transformations and linear systems theory, along with interesting examples from acoustical research. The books novel approach is of interest to research engineers and scientists In particular, the expressions concerning waveforms including the impulse responses are important for audio engineers who are familiar with digital signal analysis. Every chapter includes simple exercises designed to be solved without the need for a computer. Thus they help reconfirm the fundamental ideas and notions present in every chapter. The book is self-contained and concise, and requires only basic knowledge of acoustics and signal processing, making it valuable as a textbook for graduate and undergraduate university courses.

Author : Frederick Otto Bohls
Publisher : Unknown
Page : 190 pages
File Size : 52,5 Mb
Release : 1938
Category : Sound-waves
ISBN : OCLC:41357097

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A study of error in sound wave analysis by Frederick Otto Bohls Pdf

Author : Andy Farnell
Publisher : MIT Press
Page : 689 pages
File Size : 52,9 Mb
Release : 2010-08-20
Category : Computers
ISBN : 9780262014410

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Designing Sound by Andy Farnell Pdf

A practitioner's guide to the basic principles of creating sound effects using easily accessed free software. Designing Sound teaches students and professional sound designers to understand and create sound effects starting from nothing. Its thesis is that any sound can be generated from first principles, guided by analysis and synthesis. The text takes a practitioner's perspective, exploring the basic principles of making ordinary, everyday sounds using an easily accessed free software. Readers use the Pure Data (Pd) language to construct sound objects, which are more flexible and useful than recordings. Sound is considered as a process, rather than as data—an approach sometimes known as “procedural audio.” Procedural sound is a living sound effect that can run as computer code and be changed in real time according to unpredictable events. Applications include video games, film, animation, and media in which sound is part of an interactive process. The book takes a practical, systematic approach to the subject, teaching by example and providing background information that offers a firm theoretical context for its pragmatic stance. [Many of the examples follow a pattern, beginning with a discussion of the nature and physics of a sound, proceeding through the development of models and the implementation of examples, to the final step of producing a Pure Data program for the desired sound. Different synthesis methods are discussed, analyzed, and refined throughout.] After mastering the techniques presented in Designing Sound, students will be able to build their own sound objects for use in interactive applications and other projects

Author : Lawrence Ziomek
Publisher : CRC Press
Page : 712 pages
File Size : 55,9 Mb
Release : 2020-09-23
Category : Technology & Engineering
ISBN : 9781000151756

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Fundamentals of Acoustic Field Theory and Space-Time Signal Processing by Lawrence Ziomek Pdf

Providing a wealth of information on fundamental topics in the areas of linear air and underwater acoustics, as well as space-time signal processing, this book provides real-world design and analysis equations. As a consequence of the interdisciplinary nature of air and underwater acoustics, the book is divided into two parts: Acoustic Field Theory and Space-Time Signal Processing. It covers the fundamentals of acoustic wave propagation as well as the fundamentals of aperture theory, array theory, and signal processing. Starting with principles and using a consistent, mainly standard notation, this book develops, in detail, basic results that are useful in a variety of air and underwater acoustic applications. Numerous figures, examples, and problems are included.

Author : Robert C. Maher
Publisher : Springer
Page : 147 pages
File Size : 44,8 Mb
Release : 2018-11-07
Category : Science
ISBN : 9783319994536

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Principles of Forensic Audio Analysis by Robert C. Maher Pdf

This book provides an expert introduction to audio forensics, an essential specialty in modern forensic science, equipping readers with the fundamental background necessary to understand and participate in this exciting and important field of study. Modern audio forensic analysis combines skills in digital signal processing, the physics of sound propagation, acoustical phonetics, audio engineering, and many other fields. Scientists and engineers who work in the field of audio forensics are called upon to address issues of authenticity, quality enhancement, and signal interpretation for audio evidence that is important to a criminal law enforcement investigation, an accident investigation board, or an official civil inquiry. Expertise in audio forensics has never been more important. In addition to routine recordings from emergency call centers and police radio dispatchers, inexpensive portable audio/video recording systems are now in widespread use. Forensic evidence from the scene of a civil or criminal incident increasingly involves dashboard recorders in police cars, vest-pocket personal recorders worn by law enforcement officers, smart phone recordings from bystanders, and security surveillance systems in public areas and businesses. Utilizing new research findings and both historical and contemporary casework examples, this book blends audio forensic theory and practice in an informative and readable manner suitable for any scientifically-literate reader. Extensive examples, supplementary material, and authoritative references are also included for those who are interested in delving deeper into the field.

Author : National Research Council,Division of Behavioral and Social Sciences and Education,Board on Behavioral, Cognitive, and Sensory Sciences,Committee on Disability Determination for Individuals with Hearing Impairments
Publisher : National Academies Press
Page : 321 pages
File Size : 55,8 Mb
Release : 2004-12-17
Category : Social Science
ISBN : 9780309092968

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Hearing Loss by National Research Council,Division of Behavioral and Social Sciences and Education,Board on Behavioral, Cognitive, and Sensory Sciences,Committee on Disability Determination for Individuals with Hearing Impairments Pdf

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 : George R. Cooper
Publisher : Unknown
Page : 56 pages
File Size : 46,9 Mb
Release : 1955
Category : Noise
ISBN : LCCN:55062784

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Analysis of Waveforms for a Standard Radio Noise Generator by George R. Cooper Pdf

Author : Raven Biederman,Penny Pattison
Publisher : Taylor & Francis
Page : 392 pages
File Size : 52,6 Mb
Release : 2013-07-18
Category : Technology & Engineering
ISBN : 9781136126062

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Basic Live Sound Reinforcement by Raven Biederman,Penny Pattison Pdf

Access and interpret manufacturer spec information, find shortcuts for plotting measure and test equations, and learn how to begin your journey towards becoming a live sound professional. Land and perform your first live sound gigs with this guide that gives you just the right amount of information. Don't get bogged down in details intended for complex and expensive equipment and Madison Square Garden-sized venues. Basic Live Sound Reinforcement is a handbook for audio engineers and live sound enthusiasts performing in small venues from one-mike coffee shops to clubs. With their combined years of teaching and writing experience, the authors provide you with a thorough foundation of the theoretical and the practical, offering more advanced beginners a complete overview of the industry, the gear, and the art of mixing, while making sure to remain accessible to those just starting out.

Author : Frank Fahy
Publisher : CRC Press
Page : 328 pages
File Size : 53,5 Mb
Release : 2017-08-29
Category : Technology & Engineering
ISBN : 9781135822026

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Sound Intensity by Frank Fahy Pdf

The advent of instruments capable of measuring sound intensity, which represents the flow of energy in sound fields, has revolutionised audio-frequency acoustical metrology. Since publication of the first edition, two International Standards for the use of sound intensity for sound source power determination, and one International Standard for sound intensity instrumentation, have also been published. A number of International Standards have also been developed.

Author : Mikio Tohyama
Publisher : Academic Press
Page : 246 pages
File Size : 40,8 Mb
Release : 2020-02-29
Category : Technology & Engineering
ISBN : 9780128166116

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Acoustic Signals and Hearing by Mikio Tohyama Pdf

Understanding acoustics – the science of sound -- is essential for audio and communications engineers working in media technology. It is also extremely important for engineers to understand what allows a sound to be heard in the way it is, what makes speech intelligible, and how a particular sound is recognized within a multitude of sounds. Acoustic Signals and Hearing: A Time-Envelope and Phase Spectral Approach is unique in presenting the principles of sound and sound fields from the perspective of hearing, particularly through the use of speech and musical sounds. Acoustic Signals and Hearing: A Time-Envelope and Phase Spectral Approach is an ideal resource for researchers and acoustic engineers working in today’s environment of media technology, and graduate students studying acoustics, audio engineering, and signal processing. Presents unique sounds and sound fields from the perspective of hearing Covers source-signature and sound-path analysis Gives a reconstruction of the basics of acoustics and audio engineering via timeless topics such as linear system theory in the time and frequency domains Uses the new envelope and phase analysis approach to signal and waveform analysis Provides new perspectives via phase properties on ways to solve acoustical problems Presents straightforward mathematical formulations that give familiarity to discrete expressions of sound waves Gives a seamless and intuitive understanding — from mathematical expressions to a subjective impression of sound

Author : J. R. Isaac,Ritu Dangwal,C. Chakraborty
Publisher : Allied Publishers
Page : 662 pages
File Size : 45,5 Mb
Release : 1997
Category : Electronic
ISBN : 8170237467

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Proceedings. International conference on cognitive systmes (1997 by J. R. Isaac,Ritu Dangwal,C. Chakraborty Pdf

Author : Mark Kahrs,Karlheinz Brandenburg
Publisher : Springer Science & Business Media
Page : 569 pages
File Size : 46,6 Mb
Release : 2005-12-11
Category : Technology & Engineering
ISBN : 9780306470424

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Applications of Digital Signal Processing to Audio and Acoustics by Mark Kahrs,Karlheinz Brandenburg Pdf

Karlheinz Brandenburg and Mark Kahrs With the advent of multimedia, digital signal processing (DSP) of sound has emerged from the shadow of bandwidth limited speech processing. Today, the main appli cations of audio DSP are high quality audio coding and the digital generation and manipulation of music signals. They share common research topics including percep tual measurement techniques and analysis/synthesis methods. Smaller but nonetheless very important topics are hearing aids using signal processing technology and hardware architectures for digital signal processing of audio. In all these areas the last decade has seen a significant amount of application oriented research. The topics covered here coincide with the topics covered in the biannual work shop on “Applications of Signal Processing to Audio and Acoustics”. This event is sponsored by the IEEE Signal Processing Society (Technical Committee on Audio and Electroacoustics) and takes place at Mohonk Mountain House in New Paltz, New York. A short overview of each chapter will illustrate the wide variety of technical material presented in the chapters of this book. John Beerends: Perceptual Measurement Techniques. The advent of perceptual measurement techniques is a byproduct of the advent of digital coding for both speech and high quality audio signals. Traditional measurement schemes are bad estimates for the subjective quality after digital coding/decoding. Listening tests are subject to sta tistical uncertainties and the basic question of repeatability in a different environment.