Download or read book Personalization of Noise Reduction and Compression for Hearing Enhancement written by Nasim Taghizadeh Alamdari and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise reduction and dynamic range compression constitute two main signal processing modules for hearing enhancement in modern digital hearing aid devices. This dissertation covers personalization solutions for both of these two modules. First, in contrast to the great majority of previous works that are designed based on pre-collected datasets, in this dissertation, a personalized noise reduction solution is developed for field deployment which is capable of dealing with unseen noisy audio environments. More specifically, a deep learning-based approach is devised to improve speech denoising in real-world audio environments by not requiring the availability of clean speech signals as reference. A fully convolutional neural network is designed based on two noisy realizations of the same speech signal, one used as the input and the other as the target of the network. The results of extensive experimentations are reported to show the superiority of the developed personalized deep learning-based speech denoising approach over existing approaches. In support of personalized noise reduction, a personalized noise classification is also developed in this dissertation by performing the noise classification in an unsupervised manner. Second, in contrast to the existing prescriptive compression strategies used in hearing aids which are devised based on gain averages from a group of users, a personalized compression solution is developed in this dissertation via a human-in-the-loop deep reinforcement learning approach. The developed approach is designed to learn a specific user's hearing preferences in order to set compression ratios based on the user's preference feedbacks. Both simulation and subject testing results are reported to show the superiority of the developed personalized deep learning-based compression over conventional prescriptive compression. In addition, four smartphone apps in support of the above two modules are developed in this dissertation which include the real-time implementation of noise classification, noise reduction, and dynamic range compression.

Download or read book Compression for Clinicians written by Ted Venema and published by Delmar Thomson Learning. This book was released on 2006 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compression for Clinicians explains signal compression concepts and how to apply them to selecting and fitting hearing aids. The book covers anatomic and physiologic description of the cochlea, an overview of hearing aid fitting methods, loudness growth functions, the many ways compression is incorporated in hearing aids, the major classes of hearing aids and how compression is a factor in various hearing aid selection methods. Clinically relevant and extremely thorough, it is a complete guide to fitting compression hearing aids.

Download or read book Artificial Intelligence in Otolaryngology An Issue of Otolaryngologic Clinics of North America written by Anais Rameau and published by Elsevier Health Sciences. This book was released on 2024-09-05 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this issue of Otolaryngologic Clinics, guest editors Drs. Anais Rameau and Matthew G. Crowson bring their considerable expertise to the topic of Artificial Intelligence in Otolaryngology. Top experts in the field cover timely topics in the areas of Best Practices, AI Modalities, Implementation and Governance, and Subspecialty AI. Contains 17 relevant, practice-oriented topics including clinical data/machine learning; generative AI and otolaryngology-head and neck surgery; ethics; AI in otology and neurotology; AI in facial plastic and reconstructive surgery; AI in pediatric otolaryngology; and more. Provides in-depth clinical reviews on artificial intelligence in otolaryngology, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

Download or read book Perceptual Audio Evaluation Theory Method and Application written by Søren Bech and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: As audio and telecommunication technologies develop, there is an increasing need to evaluate the technical and perceptual performance of these innovations. A growing number of new technologies (e.g. low bit-rate coding) are based on specific properties of the auditory system, which are often highly non-linear. This means that the auditory quality of such systems cannot be measured by traditional physical measures (such as distortion, frequency response etc.), but only by perceptual evaluations in the form of listening tests. Perceptual Audio Evaluation provides a comprehensive guide to the many variables that need to be considered before, during and after experiments. Including the selection of the content of the programme material to be reproduced, technical aspects of the production of the programme material, the experimental set-up including calibration, and the statistical planning of the experiment and subsequent analysis of the data. Perceptual Audio Evaluation: Provides a complete and accessible guide to the motives, theory and practical application of perceptual evaluation of reproduced sound. Discusses all the variables of perceptual evaluation, their control and their possible influence on the results. Covers in detail all international standards on the topic. Is illustrated throughout with tables, figures and worked solutions. Perceptual Audio Evaluation will appeal to audio and speech engineers as well as researchers in audio and speech laboratories. Postgraduate students in engineering or acoustics and undergraduate students studying psychoacoustics, speech audio processing and signal processing will also find this an essential reference.

Download or read book Speech Enhancement Techniques for Digital Hearing Aids written by Komal R. Borisagar and published by Springer. This book was released on 2018-11-15 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​This book provides various speech enhancement algorithms for digital hearing aids. It covers information on noise signals extracted from silences of speech signal. The description of the algorithm used for this purpose is also provided. Different types of adaptive filters such as Least Mean Squares (LMS), Normalized LMS (NLMS) and Recursive Lease Squares (RLS) are described for noise reduction in the speech signals. Different types of noises are taken to generate noisy speech signals, and therefore information on various noises signals is provided. The comparative performance of various adaptive filters for noise reduction in speech signals is also described. In addition, the book provides a speech enhancement technique using adaptive filtering and necessary frequency strength enhancement using wavelet transform as per the requirement of audiogram for digital hearing aids. Presents speech enhancement techniques for improving performance of digital hearing aids; Covers various types of adaptive filters and their advantages and limitations; Provides a hybrid speech enhancement technique using wavelet transform and adaptive filters.

Download or read book DFT Domain Based Single Microphone Noise Reduction for Speech Enhancement written by Richard C. Hendriks and published by Morgan & Claypool Publishers. This book was released on 2013-01-01 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: As speech processing devices like mobile phones, voice controlled devices, and hearing aids have increased in popularity, people expect them to work anywhere and at any time without user intervention. However, the presence of acoustical disturbances limits the use of these applications, degrades their performance, or causes the user difficulties in understanding the conversation or appreciating the device. A common way to reduce the effects of such disturbances is through the use of single-microphone noise reduction algorithms for speech enhancement. The field of single-microphone noise reduction for speech enhancement comprises a history of more than 30 years of research. In this survey, we wish to demonstrate the significant advances that have been made during the last decade in the field of discrete Fourier transform domain-based single-channel noise reduction for speech enhancement.Furthermore, our goal is to provide a concise description of a state-of-the-art speech enhancement system, and demonstrate the relative importance of the various building blocks of such a system. This allows the non-expert DSP practitioner to judge the relevance of each building block and to implement a close-to-optimal enhancement system for the particular application at hand. Table of Contents: Introduction / Single Channel Speech Enhancement: General Principles / DFT-Based Speech Enhancement Methods: Signal Model and Notation / Speech DFT Estimators / Speech Presence Probability Estimation / Noise PSD Estimation / Speech PSD Estimation / Performance Evaluation Methods / Simulation Experiments with Single-Channel Enhancement Systems / Future Directions

Download or read book Assistive Technologies and Environmental Interventions in Healthcare written by Lynn Gitlow and published by John Wiley & Sons. This book was released on 2019-08-08 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a holistic and client-centered approach, Assistive Technologies and Environmental Interventions in Healthcare explores the individual’s needs within the environment, examines the relationship between disability and a variety of traditional and cutting-edge technologies, and presents a humanistic discussion of Technology-Environment Intervention (TEI). Written by a multidisciplinary team of authors, this text introduces readers to a variety of conceptual practice models and the clinical reasoning perspectives. It also provides insight into how designers go about solving human-tech problems, discusses best practices for both face-to-face and virtual teams, and looks at the psychological, sociocultural, and cognitive factors behind the development and provision of assistive technologies. Examines a wide range of technologies and environmental interventions Demonstrates how a better understanding of the complexity of human interaction with both the physical and social environment can lead to better use of technology Explores the future of technology and research in TEI Complete with a range of learning features such as keywords, case studies and review questions, this book is ideal for undergraduate and graduate students in occupational therapy and other related health professions, as well as those undertaking certification and board examinations.

Download or read book Noise Reduction in Speech Processing written by Jacob Benesty and published by Springer Science & Business Media. This book was released on 2009-04-28 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise is everywhere and in most applications that are related to audio and speech, such as human-machine interfaces, hands-free communications, voice over IP (VoIP), hearing aids, teleconferencing/telepresence/telecollaboration systems, and so many others, the signal of interest (usually speech) that is picked up by a microphone is generally contaminated by noise. As a result, the microphone signal has to be cleaned up with digital signal processing tools before it is stored, analyzed, transmitted, or played out. This cleaning process is often called noise reduction and this topic has attracted a considerable amount of research and engineering attention for several decades. One of the objectives of this book is to present in a common framework an overview of the state of the art of noise reduction algorithms in the single-channel (one microphone) case. The focus is on the most useful approaches, i.e., filtering techniques (in different domains) and spectral enhancement methods. The other objective of Noise Reduction in Speech Processing is to derive all these well-known techniques in a rigorous way and prove many fundamental and intuitive results often taken for granted. This book is especially written for graduate students and research engineers who work on noise reduction for speech and audio applications and want to understand the subtle mechanisms behind each approach. Many new and interesting concepts are presented in this text that we hope the readers will find useful and inspiring.

Download or read book DFT Domain Based Single Microphone Noise Reduction for Speech Enhancement written by Richard C. Hendriks and published by Springer Nature. This book was released on 2022-05-31 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: As speech processing devices like mobile phones, voice controlled devices, and hearing aids have increased in popularity, people expect them to work anywhere and at any time without user intervention. However, the presence of acoustical disturbances limits the use of these applications, degrades their performance, or causes the user difficulties in understanding the conversation or appreciating the device. A common way to reduce the effects of such disturbances is through the use of single-microphone noise reduction algorithms for speech enhancement. The field of single-microphone noise reduction for speech enhancement comprises a history of more than 30 years of research. In this survey, we wish to demonstrate the significant advances that have been made during the last decade in the field of discrete Fourier transform domain-based single-channel noise reduction for speech enhancement.Furthermore, our goal is to provide a concise description of a state-of-the-art speech enhancement system, and demonstrate the relative importance of the various building blocks of such a system. This allows the non-expert DSP practitioner to judge the relevance of each building block and to implement a close-to-optimal enhancement system for the particular application at hand. Table of Contents: Introduction / Single Channel Speech Enhancement: General Principles / DFT-Based Speech Enhancement Methods: Signal Model and Notation / Speech DFT Estimators / Speech Presence Probability Estimation / Noise PSD Estimation / Speech PSD Estimation / Performance Evaluation Methods / Simulation Experiments with Single-Channel Enhancement Systems / Future Directions

Download or read book Fitting and Dispensing Hearing Aids Third Edition written by Brian Taylor and published by Plural Publishing. This book was released on 2020-09-24 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third edition of Fitting and Dispensing Hearing Aids provides clinical audiologists, hearing instrument specialists, and graduate students with the latest in practical information reflecting current clinical practice standards. Authored by two of the industry's leading authorities on adult amplification and audiology practice management, the book is sequenced to match the patient's journey through a clinical practice. Its 12 chapters are packed with the latest commercial innovations in hearing aids, basic hearing assessment procedures, patient-related outcome measures, and innovative counseling techniques. Experienced clinicians will also find the updated chapters on help-seeking behavior and hearing aid features and benefits to be valuable to their continued professional development. Hearing aid dispensing always has been a technology-driven profession, heavily dependent on the expertise, thoughtfulness, and good judgment of the licensed professional. Over the past few years, even as technology has continued to evolve at breakneck speed, these skills have become more relevant than ever in the delivery of high-quality patient care, especially to the rapidly aging Baby Boomer population. This bestselling text is required reading for those studying to obtain their hearing aid dispensing license or audiology or speech pathology students looking for the latest in dispensing and fitting hearing aids in a succinct, entertaining format. Because each chapter is written around a specific theme–like wine tasting, travel, baseball, country music, and more–this succinct and entertaining textbook is actually fun to read! New to the Third Edition: * The chapters devoted to fitting modern hearing aids have been thoroughly updated * Thoroughly updated chapter on connectivity * Material on over-the-counter hearing aids and automated real ear measures * Information on newer outcome measures and updated approaches to counseling patients * Information on hearables, self-fitting hearing aids, over-the-counter hearing aids, and personal sound amplification products (PSAPs) * Complete review of all special features with case study examples * Revised appendix with several up-to-date industry resources

Download or read book Hearing Health Care for Adults written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-10-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The loss of hearing - be it gradual or acute, mild or severe, present since birth or acquired in older age - can have significant effects on one's communication abilities, quality of life, social participation, and health. Despite this, many people with hearing loss do not seek or receive hearing health care. The reasons are numerous, complex, and often interconnected. For some, hearing health care is not affordable. For others, the appropriate services are difficult to access, or individuals do not know how or where to access them. Others may not want to deal with the stigma that they and society may associate with needing hearing health care and obtaining that care. Still others do not recognize they need hearing health care, as hearing loss is an invisible health condition that often worsens gradually over time. In the United States, an estimated 30 million individuals (12.7 percent of Americans ages 12 years or older) have hearing loss. Globally, hearing loss has been identified as the fifth leading cause of years lived with disability. Successful hearing health care enables individuals with hearing loss to have the freedom to communicate in their environments in ways that are culturally appropriate and that preserve their dignity and function. Hearing Health Care for Adults focuses on improving the accessibility and affordability of hearing health care for adults of all ages. This study examines the hearing health care system, with a focus on non-surgical technologies and services, and offers recommendations for improving access to, the affordability of, and the quality of hearing health care for adults of all ages.

Download or read book Acoustic Feedback Cancellation and Dynamic Range Compression for Hearing Aids and Its Real time Implementation written by Kashyap Patel and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hearing aid devices (HADs) are the most common form of rehabilitation for people with sensorineural hearing loss. Dynamic range compression (DRC) is a key operation in HADs, responsible for mapping the input dynamic range to the residual dynamic range of a hearing impaired (HI) person. Moreover, it personalizes the frequency-dependent amplification to the input signal for a HI user. The output of the DRC is played back by the loudspeaker of the HAD to the user. Due to the small size of the HADs, the microphone present on HAD inevitably picks up the loudspeaker signal creating an acoustic feedback loop. Uncontrolled acoustic feedback can lead to the well known “howling” or “whistling” sound. In addition, acoustic feedback introduces artifacts in the desired signal and limits the achievable amplification by HADs. The contribution of this thesis is two folds. First, it gives an overview of signal processing aspects of personalized DRC in HADs and its implementation on smartphone devices. Second, it presents an efficient real-time approach for canceling the acoustic feedback in an adaptive manner.

Download or read book Applications of Digital Signal Processing to Audio and Acoustics written by Mark Kahrs and published by Springer Science & Business Media. This book was released on 2005-12-11 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Microphone Arrays written by Michael Brandstein and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide a single complete reference on microphone arrays. Top researchers in this field contributed articles documenting the current state of the art in microphone array research, development and technological application.

Download or read book Compression for Clinicians written by Theodore H. Venema and published by Plural Publishing. This book was released on 2016-10-30 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compression for Clinicians: A Compass for Hearing Aid Fittings, Third Edition explains many developments that have taken place in the world of hearing aid compression, fitting methods, and real ear measurement. The text aims to make difficult concepts easier to understand and to explain in plain language many topics pertaining to compression. Directional microphones and digital features of noise reduction, feedback reduction, and expansion are also covered. The third edition recognizes two distinct clinical populations of sensorineural hearing loss: mild to moderate, on one hand, and more severe, on the other. These two clinical populations are well served by a corresponding pair of compression types: wide dynamic range compression and output limiting compression. Another double distinction held throughout the text is the two-part task for all hearing aids: providing gain and also increasing the signal-to-noise ratio. Gain is addressed by compression, while listening in noise is addressed by directional microphones and digital noise reduction. The Third Edition: Includes new chapters on common clinical encounters (Chapter 1), real ear measurement (Chapter 5), and adaptive dynamic range optimization (Chapter 10)Distinguishes between "sensory" and "neural" hearing loss and devotes a separate chapter to each of these types of sensorineural hearing lossContains updated coverage of digital hearing aids, directional microphones, and digital noise reductionRetains a strong focus on the historical development of compression from yesterday's analog hearing aids to digital hearing aids of today Compression for Clinicians is intended for those studying to become hearing health care professionals, including audiologists and hearing instrument practitioners. It is also intended for practicing clinicians who simply want to refresh their knowledge base concerning hearing loss and hearing aids. Clinically relevant and very thorough, it provides a compass in the world of compression hearing aids.

Download or read book Digital Hearing Aids written by James M. Kates and published by Plural Publishing. This book was released on 2008-04-04 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Digital Hearing Healthcare written by Qinglin Meng and published by Frontiers Media SA. This book was released on 2022-12-05 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: We would like to acknowledge VCCA2020-Organizer Jan-Willem Wasmann, who has acted as coordinator and has contributed to the preparation of the proposal for this Research Topic. Dr. Qinglin Meng is working on an audio project for Huawei Technologies Co., Ltd. Dr. Jing Chen is working on research projects with Sonova AG. Dr. Fan-Gang Zeng owns stock in Axonics, Nurotron, Syntiant, Velox and Xsense. Dr. Dennis Barbour founded and owns equity in Bonauria. All other Topic Editor declare no conflicts of interest.