Subjective Differences Between Premium And Mid Level Digital Hearing Aids PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Subjective Differences Between Premium And Mid Level Digital Hearing Aids PDF full book. Access full book title Subjective Differences Between Premium And Mid Level Digital Hearing Aids.
| Author | : |
| Publisher | : |
| Total Pages | : 39 |
| Release | : 2019 |
| Genre | : |
| ISBN | : |
Download Subjective Differences Between Premium and Mid-level Digital Hearing Aids Book in PDF, ePub and Kindle
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.
| Author | : |
| Publisher | : |
| Total Pages | : 53 |
| Release | : 2018 |
| Genre | : |
| ISBN | : |
Download Objective Differences Between Premium and Mid-level Digital Hearing Aids Book in PDF, ePub and Kindle
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.
| Author | : National Academies of Sciences, Engineering, and Medicine |
| Publisher | : National Academies Press |
| Total Pages | : 325 |
| Release | : 2016-10-06 |
| Genre | : Medical |
| ISBN | : 0309439264 |
Download Hearing Health Care for Adults Book in PDF, ePub and Kindle
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.
| Author | : Andrea Leigh Walczak |
| Publisher | : |
| Total Pages | : 141 |
| Release | : 2014 |
| Genre | : |
| ISBN | : |
Download Purchasing Hearing Aids Book in PDF, ePub and Kindle
Objectives: To examine the objective and subjective differences between two sets of hearing aids; online 'pre-programmed' set versus an audiology-driven set. Introduction: Hearing aids are conventionally fit by audiologists over a number of appointments using compression based prescriptive procedures, verification and validation tools. On average, only 20% of hearing impaired people who may benefit from treatment will actually seek help, often waiting more than 10 years after the initial diagnosis to be fitted with their first set of hearing aids (Davis, Smith, Ferguson, Stephens, & Gianopoulos, 2007). As the internet and online resources continue to grow, there is greater and easier access to products online. In 2012, 89.5% of New Zealand's population used the internet (International Telecommunications Union (Geneva), June 2013), half of which make purchases online (Chapman-Smith, 2013). Consumers are constantly seeking more cost-efficient products to get more bang for their buck, and hearing aids purchased from an audiologist are associated with a larger price value as there is a service, not only goods. The research conducted explores the differences between a pre-programmed 'universal fit' hearing aids compared to an Audiologist-Driven professional fitting, and how the costs of each may lead to the outcomes. Methods: Twenty adults with a mild to moderately-severe hearing loss participated in a study to test the difference between 'pre-programmed' hearing aids that had been purchased online and hearing aids from a top hearing aid manufacturer that had been fit using audiological standards. The trial consisted of a full audiological assessment, audiology-driven hearing aid fitting and blinded measurement using the QuickSIN (speech intelligibility in noise), verification through real ear measures (REMs) and sound quality assessments for both sets of hearing aids. Results: Repeated measures ANOVAs revealed statistically significant differences between the Audiology-Driven and Online Aid fittings for the amount of gain provided across frequencies (2, 4 and 6 kHz). QuickSIN testing showed an advantage to the Audiology- Driven fitting, resulting in significantly higher scores. Subjective Sound Quality Assessments did not show a significant difference between the fittings. Conclusions: Audiology-Driven hearing aid fittings appear to provide significant aided benefits compared to the Online Aid fittings, although there was no significant difference between the subjective sound quality assessments in different listening scenarios.
| Author | : Robert E. Sandlin |
| Publisher | : Allyn & Bacon |
| Total Pages | : 360 |
| Release | : 1994 |
| Genre | : Medical |
| ISBN | : |
Download Understanding Digitally Programmable Hearing Aids Book in PDF, ePub and Kindle
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
| Author | : Michael Valente |
| Publisher | : Thieme |
| Total Pages | : 442 |
| Release | : 2002 |
| Genre | : Medical |
| ISBN | : 9781588901033 |
Download Hearing Aids Book in PDF, ePub and Kindle
In this revised and expanded second edition, you'll find all the information you need to order hearing aids, including four new chapters on multi-channel nonlinear signal processing; advances in microphone technology; digital signal processing; and developments in rehabilitation technology. All remaining chapters have been updated to reflect the newest advances in this fast-moving field. An invaluable text for students and specialists alike!
| Author | : Arthur Schaub |
| Publisher | : Thieme |
| Total Pages | : 204 |
| Release | : 2011-01-01 |
| Genre | : Medical |
| ISBN | : 1604060077 |
Download Digital Hearing Aids Book in PDF, ePub and Kindle
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.
| Author | : Arthur Schaub |
| Publisher | : Thieme |
| Total Pages | : 204 |
| Release | : 2011-01-01 |
| Genre | : Medical |
| ISBN | : 163853182X |
Download Digital Hearing Aids Book in PDF, ePub and Kindle
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.
| Author | : |
| Publisher | : |
| Total Pages | : 158 |
| Release | : 2008 |
| Genre | : Audiology |
| ISBN | : |
Download Objective and Subjective Evaluation of Noise Reduction Algorithms in Digital Hearing Aids Book in PDF, ePub and Kindle
| Author | : Geoffrey Cooling |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 58 |
| Release | : 2016-11-18 |
| Genre | : |
| ISBN | : 9781540469359 |
Download The Little Book of Hearing Aids Book in PDF, ePub and Kindle
Don't Buy A Hearing Aid Until You Have Read This Book A hearing aid advice guide with no techno jargon nonsense Buying hearing aids can be quite a daunting affair, not least because understanding the choices and technology available can be difficult. I have set out to make the incomprehensible gibberish understandable, explaining the types of hearing aids, their pros and cons, their technology and features in clear language. I discuss the introduction of the new Lithium-ion rechargeable hearing aids and why they will be exceptionally popular. I talk about invisible hearing aids and what you need to understand before choosing one. I also discuss the other hearing aid types, what they are and why I like BTE (Behind The Ear) hearing devices in particular. I discuss the different levels of technology, why they differ in price and what they can be expected to deliver for you. I also cover the different hearing aid features, what are they and what do they do. I hope to deliver clear, honest and independent advice on hearing devices with no gobbledygook in an effort to give you the information needed to make educated choices about purchasing the right hearing aid for you. I don't cover prices in this book, because they vary too much across the world, however, I clearly explain the technology levels available and how they can be expected to work for you. If you, or someone you know is struggling with choosing the right hearing aid for them, then this book will help.
