Digital Hearing Aids

Digital Hearing Aids
Author: Arthur Schaub
Publisher: Thieme
Total Pages: 204
Release: 2011-01-01
Genre: Medical
ISBN: 1604060077

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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.

Subjective Differences Between Premium and Mid-level Digital Hearing Aids

Subjective Differences Between Premium and Mid-level Digital Hearing Aids
Author:
Publisher:
Total Pages: 39
Release: 2019
Genre:
ISBN:

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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.

Hearing Aids

Hearing Aids
Author: Michael Valente
Publisher: Georg Thieme Verlag
Total Pages: 472
Release: 1996
Genre: Medical
ISBN:

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Like its popular first edition, this book stresses a fundamental but frequently overlooked truth: the process of ordering hearing aids is as important as selecting and verifying hearing aid fittings. In this revised and expanded second edition, you will find all the information you need to confidently order hearing aids, including entirely new chapters and updates that reflect the latest developments and technology in this fast-moving field. Packed with beneficial tables and diagrams, the text provides current and comprehensive guidelines on analyzing different microphones, receivers, telecoils, and amplifiers; problems of distortion, noise, and the central nervous system; and the effect of these problems on hearing aid function. Book jacket.

Understanding Digitally Programmable Hearing Aids

Understanding Digitally Programmable Hearing Aids
Author: Robert E. Sandlin
Publisher: Allyn & Bacon
Total Pages: 360
Release: 1994
Genre: Medical
ISBN:

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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

Modern Hearing Aids

Modern Hearing Aids
Author: H. Gustav Mueller
Publisher: Plural Publishing
Total Pages: 473
Release: 2013-06-28
Genre: Medical
ISBN: 1597566713

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