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A Comparison Of Digitally Programmable And Conventional Analog Hearing Aids Performance On A Speech Discrimination Task In Noise
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Book Synopsis A Comparison of Digitally-programmable and Conventional Analog Hearing Aids' Performance on a Speech Discrimination Task in Noise by : Charlotte Anne Parker
Download or read book A Comparison of Digitally-programmable and Conventional Analog Hearing Aids' Performance on a Speech Discrimination Task in Noise written by Charlotte Anne Parker and published by . This book was released on 1992 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Understanding Digitally Programmable Hearing Aids by : Robert E. Sandlin
Download or read book Understanding Digitally Programmable Hearing Aids written by Robert E. Sandlin and published by Allyn & Bacon. This book was released on 1994 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the hearing health professional with useful information about the development and application of digital technology applied to hearing aid devices. Chapters discuss different systems available such as ReSound, Widex Multiprogrammable, PMC, Triton, PRIZM, and 3M. The application of digital t
Book Synopsis Subjective Differences Between Premium and Mid-level Digital Hearing Aids by :
Download or read book Subjective Differences Between Premium and Mid-level Digital Hearing Aids written by and published by . This book was released on 2019 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study compared perceptual differences between premium and mid-level hearing aids from a major manufacturer in normal hearing listeners. Limited literature currently exists comparing perceptual differences between premium and mid-level digital hearing aids. This information is highly important in decision-making for clinicians and patients alike. Barry et al. (2018) evaluated four major hearing aid models' noise reduction properties and determined that one manufacturer's premium and mid-level devices demonstrated significant differences in noise reduction gain in frequencies associated with human speech. We programmed this device for a mild sloping to moderately-severe SNHL using the manufacturer's proprietary fitting formula and noise reduction at its maximum setting. The hearing aid was mounted on KEMAR and ten Hearing in Noise Test (HINT) sentences were recorded with each device (premium and mid-level) at two different signal to noise ratios (SNR): 0 dB SNR and +5 dB SNR. Normal hearing listeners (n = 19) were blindly presented with the pair of stimuli at each signal to noise ratio condition with a three-alternative forced choice paradigm, whereby they indicate which presentation they preferred, or if there was no perceptual differences between the recordings. The preferences were made by each subject on the basis of three different criteria: noisiness, speech intelligibility, and overall quality. The findings of this study are consistent with previous research and suggest that there is no subjective difference between premium and mid-level hearing aids on measures of noisiness, speech intelligibility, and overall sound quality. Overall, data suggested that participants did not perceive a statistically significant difference between technology levels for either the 0 dB SNR condition or the +5 dB SNR condition. This suggests that in both very noisy and less noisy environments, normal-hearing listeners do not perceive any advantage when listening with premium technology. Future research should examine premium and mid-level technology with objective outcome measures and utilize subjects with hearing loss. It may be useful to examine differences between the devices on measures of listening effort as well.
Book Synopsis Objective Differences Between Premium and Mid-level Digital Hearing Aids by :
Download or read book Objective Differences Between Premium and Mid-level Digital Hearing Aids written by and published by . This book was released on 2018 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ongoing study compared premium and mid-level hearing aids from major manufacturers on noise reduction and general electroacoustic characteristics. The findings of this study will contribute to the scarce independent literature evaluating currently available hearing aid technology. Measuring the overall gain reduction in response to a steady state noise can objectively test noise reduction. However, such a method does not specifically test a hearing aid's ability to reduce speech in specific narrow frequency bands. Hanline & Rout (2008) developed a set of stimuli to evaluate multichannel noise reduction algorithms more precisely. We used these stimuli to test noise reduction abilities of hearing aids. Premium and mid level digital hearing aids from four major manufacturers were obtained and programmed for mild to moderately severe sloping SNHL using the manufacturer's proprietary fitting formula. Each hearing aid was programmed for noise reduction ON and OFF with every other feature disabled (or minimized). Hearing aid programming was verified, and each hearing aid was tested twice for reliability. Three different bandwidths of steady-state noise (1/3 oct, 1 oct, 2 oct) were embedded at six different frequencies (0.5, 1, 2, and 4 kHz) resulting in 12 new stimuli. In addition, a 30 second steady state speech shaped noise was included to evaluate the attack time and overall gain reduction of each noise reduction algorithm. The findings of this study suggest that there is no difference between the noise reduction efficiency of a premium level hearing aid when compared to a mid-level instrument at reducing steady state background noise. The frequency specific data indicated that there was a significant difference in the noise reduction capabilities of a mid-level and premium level hearing instrument when the background noise included both speech and background noise, as simulated by the ICRA stimuli. ICRA stimuli was created by the International Collegium for Rehabilitative Audiology for the purpose of analyzing hearing aids, as it employs spectra shaped speech like noise (Dreschler et al., 2001). There was also a significant interaction between technology level and noise bandwidth as well as a significant main effect of noise bandwidth.
Book Synopsis Interpreting Hearing Aid Technology by : Kenneth Donnelly
Download or read book Interpreting Hearing Aid Technology written by Kenneth Donnelly and published by Charles C. Thomas Publisher. This book was released on 1974 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Digital Hearing Aids by : Arthur Schaub
Download or read book Digital Hearing Aids written by Arthur Schaub and published by Thieme. This book was released on 2011-01-01 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indispensable guide to digital hearing aid technology 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.
Book Synopsis A New Method for Expressing Hearing Aid Performance Characteristics and for Conducting Hearing Aid Evaluations by : Daniel Reno Schumaier
Download or read book A New Method for Expressing Hearing Aid Performance Characteristics and for Conducting Hearing Aid Evaluations written by Daniel Reno Schumaier and published by . This book was released on 1972 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of the Speech Discrimination Performance of Hearing-impaired Individuals Using the Maico Direction Ear Mark 100 and the Beltone Cantata Y/B Hearing Aid by : Robert James Moss
Download or read book A Comparison of the Speech Discrimination Performance of Hearing-impaired Individuals Using the Maico Direction Ear Mark 100 and the Beltone Cantata Y/B Hearing Aid written by Robert James Moss and published by . This book was released on 1972 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Digital Hearing Aids by : Arthur Schaub
Download or read book Digital Hearing Aids written by Arthur Schaub and published by Thieme. This book was released on 2008 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: An indispensable guide to digital hearing aid technology 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.
Book Synopsis A Comparison of the Speech Discrimination Performance of Three Hearing Impaired Adult Groups on the HFCDWL and the C. I. D. Auditory Test W-22 by : Carol May Stagg
Download or read book A Comparison of the Speech Discrimination Performance of Three Hearing Impaired Adult Groups on the HFCDWL and the C. I. D. Auditory Test W-22 written by Carol May Stagg and published by . This book was released on 1973 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Utilization of a Combined Auditory and Visual Test of Discrimination Ability with People Wearing Hearing Aids as a Measure of Communication Effectiveness by : Hinda Kahn
Download or read book The Utilization of a Combined Auditory and Visual Test of Discrimination Ability with People Wearing Hearing Aids as a Measure of Communication Effectiveness written by Hinda Kahn and published by . This book was released on 1964 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electroacoustic and Behavioural Evaluation of Hearing Aid Digital Signal Processing Features by : David Suelzle
Download or read book Electroacoustic and Behavioural Evaluation of Hearing Aid Digital Signal Processing Features written by David Suelzle and published by . This book was released on 2013 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern digital hearing aids provide an array of features to improve the user listening experience. As the features become more advanced and interdependent, it becomes increasingly necessary to develop accurate and cost-effective methods to evaluate their performance. Subjective experiments are an accurate method to determine hearing aid performance but they come with a high monetary and time cost. Four studies that develop and evaluate electroacoustic hearing aid feature evaluation techniques are presented. The first study applies a recent speech quality metric to two bilateral wireless hearing aids with various features enabled in a variety of environmental conditions. The study shows that accurate speech quality predictions are made with a reduced version of the original metric, and that a portion of the original metric does not perform well when applied to a novel subjective speech quality rating database. The second study presents a reference free (nonintrusive) electroacoustic speech quality metric developed specifically for hearing aid applications and compares its performance to a recent intrusive metric. The non-intrusive metric offers the advantage of eliminating the need for a shaped reference signal and can be used in real time applications but requires a sacrifice in prediction accuracy. The third study investigates the digital noise reduction performance of seven recent hearing aid models. An electroacoustic measurement system is presented that allows the noise and speech signals to be separated from hearing aid recordings. It is shown how this can be used to investigate digital noise reduction performance through the application of speech quality and speech intelligibility measures. It is also shown how the system can be used to quantify digital noise reduction attack times. The fourth study presents a turntable-based system to investigate hearing aid directionality performance. Two methods to extract the signal of interest are described. Polar plots are presented for a number of hearing aid models from recordings generated in both the free-field and from a head-and-torso simulator. It is expected that the proposed electroacoustic techniques will assist Audiologists and hearing researchers in choosing, benchmarking, and fine-tuning hearing aid features.
Book Synopsis Hearing Aid Performance Measurement Data and Hearing Aid Selection Procedures by :
Download or read book Hearing Aid Performance Measurement Data and Hearing Aid Selection Procedures written by and published by . This book was released on 1973 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Digital Hearing Aids by : James M. Kates
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:
Book Synopsis Effects of Coordinated Bilaterial Hearing Aids and Auditory Training on Sound Localization by : Iman Elsabah Ibrahim
Download or read book Effects of Coordinated Bilaterial Hearing Aids and Auditory Training on Sound Localization written by Iman Elsabah Ibrahim and published by . This book was released on 2013 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis has two main objectives: 1) evaluating the benefits of the bilateral coordination of the hearing aid Digital Signal Processing (DSP) features by measuring and comparing the auditory performance with and without the activation of this coordination, and 2) evaluating the benefits of acclimatization and auditory training on such auditory performance and, determining whether receiving training in one aspect of auditory performance (sound localization) would generalize to an improvement in another aspect of auditory performance (speech intelligibility in noise), and to what extent. Two studies were performed. The first study evaluated the speech intelligibility in noise and horizontal sound localization abilities in HI listeners using hearing aids that apply bilateral coordination of WDRC. A significant improvement was noted in sound localization with bilateral coordination on when compared to off, while speech intelligibility in noise did not seem to be affected. The second study was an extension of the first study, with a suitable period for acclimatization provided and then the participants were divided into training and control groups. Only the training group received auditory training. The training group performance was significantly better than the control group performance in some conditions, in both the speech intelligibility and the localization tasks. The bilateral coordination did not have significant effects on the results of the second study. This work is among the early literature to investigate the impact of bilateral coordination in hearing aids on the users' auditory performance. Also, this work is the first to demonstrate the effect of auditory training in sound localization on the speech intelligibility performance.
Book Synopsis The Application of Signal Processing Concepts to Hearing Aids by : Paul Yanick
Download or read book The Application of Signal Processing Concepts to Hearing Aids written by Paul Yanick and published by . This book was released on 1978 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Association for the Advancement of Assistive Technology in Europe Publisher : ISBN 13 : Total Pages :768 pages Book Rating :4.3/5 (91 download)
Book Synopsis Assistive Technology-added Value to the Quality of Life by : Association for the Advancement of Assistive Technology in Europe
Download or read book Assistive Technology-added Value to the Quality of Life written by Association for the Advancement of Assistive Technology in Europe and published by . This book was released on 2001 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
