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Acoustic Signals and Hearing

Acoustic Signals and Hearing
  • Author : Mikio Tohyama
  • Publisher :Unknown
  • Release Date :2020-05
  • Total pages :300
  • ISBN : 0128163917
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Summary : Understanding acoustics - the science of sound - is essential for audio and communications engineers working in media technology. Most importantly, engineers need to understand what makes a sound as it is heard; what makes speech intelligible; how a particular sound is displayed 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, mainly through the use of speech and musical sounds, making it very suitable for acoustic engineers and researchers in today's environment of media technology.

Acoustic Signals and Hearing

Acoustic Signals and Hearing
  • Author : Mikio Tohyama
  • Publisher :Unknown
  • Release Date :2020-02-29
  • Total pages :244
  • ISBN : 9780128166116
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Summary : 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

Acoustics and Hearing

Acoustics and Hearing
  • Author : Peter Damaske
  • Publisher :Unknown
  • Release Date :2008-05-16
  • Total pages :120
  • ISBN : 9783540782292
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Summary : When you listen to music at home, you would like to have an acoustic impression close to being in the concert hall. This is achieved by an advanced two-loudspeaker technique and electronic handling of the signals. The way to head-related sound reproduction and reception to get the original impression is explained in this comprehensive book on the outer influence of hearing and how to achieve perfect stereo effects. The book also introduces a theory of drift thresholds.

Individual Hearing Protection and Audibility of Acoustic Signals

Individual Hearing Protection and Audibility of Acoustic Signals
  • Author : G. Lessing,U. Sauer
  • Publisher :Unknown
  • Release Date :1982
  • Total pages :13
  • ISBN : OCLC:184749561
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The Effects of Hearing Protectors on the Perception of Acoustic Signals

The Effects of Hearing Protectors on the Perception of Acoustic Signals
  • Author : H. Lazarus
  • Publisher :Unknown
  • Release Date :1983
  • Total pages :20
  • ISBN : OCLC:315052474
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Hearing Loss

Hearing Loss
  • 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 :Unknown
  • Release Date :2004-12-17
  • Total pages :320
  • ISBN : 9780309092968
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Summary : 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.

Principles and Applications of Spatial Hearing

Principles and Applications of Spatial Hearing
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2021
  • Total pages :229
  • ISBN : 9789814465410
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Summary :

Digital Signal Processing in Audio and Acoustical Engineering

Digital Signal Processing in Audio and Acoustical Engineering
  • Author : Francis F. Li,Trevor J. Cox
  • Publisher :Unknown
  • Release Date :2019-04-02
  • Total pages :228
  • ISBN : 9781351644150
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Summary : Starting with essential maths, fundamentals of signals and systems, and classical concepts of DSP, this book presents, from an application-oriented perspective, modern concepts and methods of DSP including machine learning for audio acoustics and engineering. Content highlights include but are not limited to room acoustic parameter measurements, filter design, codecs, machine learning for audio pattern recognition and machine audition, spatial audio, array technologies and hearing aids. Some research outcomes are fed into book as worked examples. As a research informed text, the book attempts to present DSP and machine learning from a new and more relevant angle to acousticians and audio engineers. Some MATLAB® codes or frameworks of algorithms are given as downloads available on the CRC Press website. Suggested exploration and mini project ideas are given for "proof of concept" type of exercises and directions for further study and investigation. The book is intended for researchers, professionals, and senior year students in the field of audio acoustics.

Digital Hearing Aids

Digital Hearing Aids
  • Author : Arthur Schaub
  • Publisher :Unknown
  • Release Date :2011-01-01
  • Total pages :188
  • ISBN : 9781604060072
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Summary : Digital Hearing Aids is an essential reference for information about the latest innovations in digital hearing aid technology. Concise descriptions and easy-to-reference tables and diagrams enable the reader to rapidly gain a solid understanding of digital signal processing, including such important topics as adaptive acoustic directionality, adaptive noise reduction, adaptive feedback cancellation, and sound classification. The book is divided into three main sections, with the first section providing an overview of foundational concepts, the second section presenting detailed analysis of state-of-the-art processing techniques, and the third section describing specific technical aspects of digital processing. Highlights: Each chapter opens with a brief overview of topics and questions, rapidly orienting the reader with the scope of the material presented Mathematical examples in the third section of the book allow the reader to work through practical calculations, comprehend the nuts and bolts of the processing schemes, and understand the benefits and limitations of each More than 170 illustrations and diagrams aid the comprehension of key concepts This handbook is ideal for audiologists, otolaryngologists, speech-language pathologists, and for other professionals involved in the applications of digital signal processing.

Acoustic Signals as Visual Biofeedback in the Speech Training of Hearing Impaired Children

Acoustic Signals as Visual Biofeedback in the Speech Training of Hearing Impaired Children
  • Author : Elizabeth E. Crawford
  • Publisher :Unknown
  • Release Date :2007
  • Total pages :158
  • ISBN : OCLC:175289742
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Insect Hearing and Acoustic Communication

Insect Hearing and Acoustic Communication
  • Author : Berthold Hedwig
  • Publisher :Unknown
  • Release Date :2013-11-08
  • Total pages :222
  • ISBN : 9783642404627
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Summary : This volume provides a comprehensive selection of recent studies addressing insect hearing and acoustic communication. The variety of signalling behaviours and hearing organs makes insects highly suitable animals for exploring and analysing signal generation and hearing in the context of neural processing, ecology, evolution and genetics. Across a variety of hearing species like moths, crickets, bush-crickets, grasshoppers, cicadas and flies, the leading researchers in the field cover recent scientific progress and address key points in current research, such as: - How can we approach the evolution of hearing in insects and what is the developmental and neural origin of the auditory organs? - How are hearing and sound production embedded in the natural lifestyle of the animals, allowing intraspecific communication but also predator avoidance and even predation? - What are the functional properties of hearing organs and how are they achieved at the molecular, biophysical and neural levels? - What are the neural mechanisms of central auditory processing and signal generation? The book is intended for students and researchers both inside and outside of the fascinating field of bioacoustics and aims to foster understanding of hearing and acoustic communication in insects.

Signals and Systems for Speech and Hearing

Signals and Systems for Speech and Hearing
  • Author : Stuart Rosen,Peter Howell
  • Publisher :Unknown
  • Release Date :2011
  • Total pages :364
  • ISBN : 9781848552265
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Summary : "Signals and Systems for Speech and Hearing, 2nd Edition" provides the reader with a thorough introduction to the concepts of signals and systems analysis that play a role in the speech and hearing sciences. Few equations are used, and an informal, friendly and informative style is maintained throughout. Because much of the story is told through figures, the authors have gone to great lengths to provide clear and truthful figures that show what the text says they do. It is hoped the reader will come away with a strong visual understanding of the concepts involved. This book can be used at many levels, from the student who hasn't heard of a spectrum before, to the experienced worker who has only a fuzzy understanding of the notion of an impulse response. The authors have tried to keep the underlying conceptual structure of signals and systems analysis explicit, in the hope that even some readers with advanced technical training might find clarification of the basic principles. Notable features include over 300 figures integrated closely with the text, all drawn specifically. Exercises are provided at the end of most chapters.

Handbook of Signal Processing in Acoustics

Handbook of Signal Processing in Acoustics
  • Author : Sonoko Kuwano (ed),Michael Vorländer (ed)
  • Publisher :Unknown
  • Release Date :2008
  • Total pages :1950
  • ISBN : 9780387776989
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Acoustic Communication

Acoustic Communication
  • Author : Andrea Simmons,Richard R. Fay
  • Publisher :Unknown
  • Release Date :2006-04-18
  • Total pages :404
  • ISBN : 9780387227627
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Summary : In order to communicate, animals send and receive signals that are subject to their particular anatomical, psychological, and environmental constraints. This SHAR volume discusses both the production and perception of acoustic signals. Chapters address the information that animals communicate, how the communication is developed and learned, and how communication systems have adapted and evolved within species. The book will give examples from a variety of species.

Applications of Digital Signal Processing to Audio and Acoustics

Applications of Digital Signal Processing to Audio and Acoustics
  • Author : Mark Kahrs,Karlheinz Brandenburg
  • Publisher :Unknown
  • Release Date :2006-04-18
  • Total pages :548
  • ISBN : 9780306470424
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Summary : 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.

Ground Vehicle Acoustic Signal Processing Based on Biological Hearing Models

Ground Vehicle Acoustic Signal Processing Based on Biological Hearing Models
  • Author : Li Liu
  • Publisher :Unknown
  • Release Date :1999
  • Total pages :156
  • ISBN : OCLC:63522862
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Ergonomics. Accessible Design. Sound Pressure Levels of Auditory Signals for Consumer Products

Ergonomics. Accessible Design. Sound Pressure Levels of Auditory Signals for Consumer Products
  • Author : British Standards Institute Staff
  • Publisher :Unknown
  • Release Date :1911-01-31
  • Total pages :32
  • ISBN : 0580689468
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Summary : Ergonomics, Design, Product design, Accessibility, Consumer goods, Sound intensity, Acoustic signals, Acoustics, Hearing defects, Hearing (auditory perception), Noise (spurious signals), Old people, Audiofrequencies, Acoustic measurement, Audibility

Hearing and Hormones

Hearing and Hormones
  • Author : Andrew H. Bass,Joseph A. Sisneros,Arthur N. Popper,Richard R Fay
  • Publisher :Unknown
  • Release Date :2016-04-22
  • Total pages :209
  • ISBN : 9783319265971
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Summary : This book reviews the growing literature that is consistent with the hypothesis that hormones can regulate auditory physiology and perception across a broad range of animal taxa, including humans. Understanding how hormones modulate auditory function has far reaching implications for advancing our knowledge in the basic biomedical sciences and in understanding the evolution of acoustic communication systems. A fundamental goal of neuroscience is to understand how hormones modulate neural circuits and behavior. For example, steroids such as estrogens and androgens are well-known regulators of vocal motor behaviors used during social acoustic communication. Recent studies have shown that these same hormones can also greatly influence the reception of social acoustic signals, leading to the more efficient exchange of acoustic information.

Insect Hearing

Insect Hearing
  • Author : Gerald S. Pollack,Andrew C. Mason,Arthur N Popper,Richard R Fay
  • Publisher :Unknown
  • Release Date :2016-06-06
  • Total pages :262
  • ISBN : 9783319288901
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Summary : Insect Hearing provides a broadly based view of the functions, mechanisms, and evolution of hearing in insects. With a single exception, the chapters focus on problems of hearing and their solutions, rather than being focused on particular taxa. The exception, hearing in Drosophila, is justified because, due to its ever growing toolbox of genetic and optical techniques, Drosophila is rapidly becoming one of the most important model systems in neurobiology, including the neurobiology of hearing. Auditory systems, whether insectan or vertebrate, must perform a number of basic tasks: capturing mechanical stimuli and transducing these into neural activity, representing the timing and frequency of sound signals, distinguishing between behaviorally relevant signals and other sounds and localizing sound sources. Studying how these are accomplished in insects offers a valuable comparative view that helps to reveal general principles of auditory function.

The Technology of Binaural Understanding

The Technology of Binaural Understanding
  • Author : Jens Blauert,Jonas Braasch
  • Publisher :Unknown
  • Release Date :2020-08-12
  • Total pages :815
  • ISBN : 9783030003869
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Summary : Sound, devoid of meaning, would not matter to us. It is the information sound conveys that helps the brain to understand its environment. Sound and its underlying meaning are always associated with time and space. There is no sound without spatial properties, and the brain always organizes this information within a temporal–spatial framework. This book is devoted to understanding the importance of meaning for spatial and related further aspects of hearing, including cross-modal inference. People, when exposed to acoustic stimuli, do not react directly to what they hear but rather to what they hear means to them. This semiotic maxim may not always apply, for instance, when the reactions are reflexive. But, where it does apply, it poses a major challenge to the builders of models of the auditory system. Take, for example, an auditory model that is meant to be implemented on a robotic agent for autonomous search-&-rescue actions. Or think of a system that can perform judgments on the sound quality of multimedia-reproduction systems. It becomes immediately clear that such a system needs • Cognitive capabilities, including substantial inherent knowledge • The ability to integrate information across different sensory modalities To realize these functions, the auditory system provides a pair of sensory organs, the two ears, and the means to perform adequate preprocessing of the signals provided by the ears. This is realized in the subcortical parts of the auditory system. In the title of a prior book, the term Binaural Listening is used to indicate a focus on sub-cortical functions. Psychoacoustics and auditory signal processing contribute substantially to this area. The preprocessed signals are then forwarded to the cortical parts of the auditory system where, among other things, recognition, classification, localization, scene analysis, assignment of meaning, quality assessment, and action planning take place. Also, information from different sensory modalities is integrated at this level. Between sub-cortical and cortical regions of the auditory system, numerous feedback loops exist that ultimately support the high complexity and plasticity of the auditory system. The current book concentrates on these cognitive functions. Instead of processing signals, processing symbols is now the predominant modeling task. Substantial contributions to the field draw upon the knowledge acquired by cognitive psychology. The keyword Binaural Understanding in the book title characterizes this shift. Both books, The Technology of Binaural Listening and the current one, have been stimulated and supported by AABBA, an open research group devoted to the development and application of models of binaural hearing. The current book is dedicated to technologies that help explain, facilitate, apply, and support various aspects of binaural understanding. It is organized into five parts, each containing three to six chapters in order to provide a comprehensive overview of this emerging area. Each chapter was thoroughly reviewed by at least two anonymous, external experts. The first part deals with the psychophysical and physiological effects of Forming and Interpreting Aural Objects as well as the underlying models. The fundamental concepts of reflexive and reflective auditory feedback are introduced. Mechanisms of binaural attention and attention switching are covered—as well as how auditory Gestalt rules facilitate binaural understanding. A general blackboard architecture is introduced as an example of how machines can learn to form and interpret aural objects to simulate human cognitive listening. The second part, Configuring and Understanding Aural Space, focuses on the human understanding of complex three-dimensional environments—covering the psychological and biological fundamentals of auditory space formation. This part further addresses the human mechanisms used to process information and interact in complex reverberant environments, such as concert halls and forests, and additionally examines how the auditory system can learn to understand and adapt to these environments. The third part is dedicated to Processing Cross-Modal Inference and highlights the fundamental human mechanisms used to integrate auditory cues with cues from other modalities to localize and form perceptual objects. This part also provides a general framework for understanding how complex multimodal scenes can be simulated and rendered. The fourth part, Evaluating Aural-scene Quality and Speech Understanding, focuses on the object-forming aspects of binaural listening and understanding. It addresses cognitive mechanisms involved in both the understanding of speech and the processing of nonverbal information such as Sound Quality and Quality-of- Experience. The aesthetic judgment of rooms is also discussed in this context. Models that simulate underlying human processes and performance are covered in addition to techniques for rendering virtual environments that can then be used to test these models. The fifth part deals with the Application of Cognitive Mechanisms to Audio Technology. It highlights how cognitive mechanisms can be utilized to create spatial auditory illusions using binaural and other 3D-audio technologies. Further, it covers how cognitive binaural technologies can be applied to improve human performance in auditory displays and to develop new auditory technologies for interactive robots. The book concludes with the application of cognitive binaural technologies to the next generation of hearing aids.

Intelligent Analysis of Composite Acoustic Signals

Intelligent Analysis of Composite Acoustic Signals
  • Author : John M. Chowning,Bernard Mont-Reynaud
  • Publisher :Unknown
  • Release Date :1986
  • Total pages :29
  • ISBN : STANFORD:36105016540051
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Summary :