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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Page: 1 2 3 4 Hits 1 – 20 of 79 1 Essentials of Modern Hearing Aids: Selection, Fitting, and Verification Johnson, Earl E. In: ETSU Faculty Works (2019) BASE Show details 2 Realistic Expectations for Speech Recognition with Digital Hearing Aid Devices Providing Acoustic Amplification and Noise Averting Microphones Johnson, Earl E. In: ETSU Faculty Works (2018) BASE Show details 3 OTC Hearing Aids: Balancing Safety and Accessibility Johnson, Earl E. In: ETSU Faculty Works (2018) BASE Show details 4 Comparing Hearing Loss Desensitization Factors and Their Effects on SII Ricks, Madison; Johnson, Earl E. In: ETSU Faculty Works (2018) BASE Show details 5 Foreword - Hearing Aid Technology: Model-based Concepts and Assessment Johnson, Earl E. In: ETSU Faculty Works (2017) BASE Show details 6 Hearing Aid Fitting and Developmental Outcomes of Children Fit According to Either the Nal or Dsl Prescription: Fit-to-Target, Audibility, Speech and Language Abilities Flynn, Christopher; Hou, Sanna; Zhang, Vicky W.... In: ETSU Faculty Works (2017) BASE Show details 7 Better Hearing Devices and Many Forms of Delivery Johnson, Earl E. In: ETSU Faculty Works (2016) BASE Show details 8 Better Hearing Leads to Learning and Knowledge Johnson, Earl E. In: ETSU Faculty Works (2016) BASE Show details 9 A Patient-Centered, Provider-Facilitated Approach to the Refinement of Nonlinear Frequency Compression Parameters Based on Subjective Preference Ratings of Amplified Sound Quality Johnson, Earl E.; Light, Keri C. In: ETSU Faculty Works (2015) Abstract: Purpose: To evaluate sound quality preferences of participants wearing hearing aids with different strengths of nonlinear frequency compression (NFC) processing versus no NFC processing. Two analysis methods, one without and one with a qualifier as to the magnitude of preferences, were compared for their percent agreement to differentiate a small difference in perceived sound quality as a result of applied NFC processing. Research Design: A single-blind design was used with participants unaware of the presence or strength of NFC processing (independent variable). The National Acoustic Laboratories-Nonlinear 2 (NAL-NL2) prescription of amplification was chosen because audibility is intentionally not prescribed in the presence of larger sensorineural hearing loss thresholds. A lack of prescribed audibility, when present, was deemed an objective qualifier for NFC. NFC is known to improve the input bandwidth available to listeners when high-frequency audibility is not otherwise available and increasing strengths of NFC were examined. Experimental condition 3 (EC3) was stronger than the manufacturer default (EC2). More aggressive strengths (e.g., EC4 and EC5), however, were expected to include excessive distortion and even reduce the output bandwidth that had been prescribed as audible by NAL-NL2 (EC1). Study Sample: A total of 14 male Veterans with severe high-frequency sensorineural hearing loss. Data Collection and Analysis: Participant sound quality preference ratings (dependent variable) without a qualifier as to the magnitude of preference were analyzed based on binomial probability theory, as is traditional with paired comparison data. The ratings with a qualifier as to the magnitude of preference were analyzed based on the nonparametric statistic of the Wilcoxon signed rank test. Results: The binomial probability analysis method identified a sound quality preference as well as the nonparametric probability test method. As the strength of NFC increased, more participants preferred the EC with less NFC. Fourteen of 14 participants showed equal preference between EC1 and EC2 perhaps, in part, because EC2 showed no objective improvement in audibility for six of the 14 participants (42%). Thirteen of the 14 participants showed no preference between NAL-NL2 and EC3, but all participants had an objective improvement in audibility. With more NFC than EC3, more and more participants preferred the other EC with less NFC in the paired comparison. Conclusions: By referencing the recommended sensation levels of amplitude compression (e.g., NAL-NL2) in the ear canal of hearing aid wearers, the targeting of NFC parameters can likely be optimized with respect to improvements in effective audibility that may contribute to speech recognition without adversely impacting sound quality. After targeting of NFC parameters, providers can facilitate decisions about the use of NFC parameters (strengths of processing) via sound quality preference judgments using paired comparisons. Keyword: amplification; Audiology and Speech-Language Pathology; frequency lowering; hearing aids; hearing loss; nonlinear frequency compression; paired comparison; sound quality; Speech and Hearing Science; Speech Pathology and Audiology; speech perception URL: https://dc.etsu.edu/etsu-works/1707 https://doi.org/10.3766/jaaa.14053 BASE Hide details 10 Characteristics of Speech (Part 1) and Language (Part 2) for Hearing Devices (Aids) Johnson, Earl E. In: ETSU Faculty Works (2015) BASE Show details 11 Comparing NAL-NL1 and DSL v5 in Hearing Aids Fit to Children with Severe or Profound Hearing Loss: Goodness of Fit-to-Targets, Impacts on Predicted Loudness and Speech Intelligibility Ching, Teresa Y.C.; Quar, Tian Kar; Johnson, Earl E.... In: ETSU Faculty Works (2015) BASE Show details 12 The Efficient Frontier and Beyond: Possibilities and Limitations of Hearing Aids Johnson, Earl E. In: ETSU Faculty Works (2015) BASE Show details 13 Evidences Surrounding Hearing Aid Selection, Fitting, and Evaluation Johnson, Earl E. In: ETSU Faculty Works (2015) BASE Show details 14 The Adjustment of Hearing Aid Amplification Parameters for Children to Promote Good Outcomes Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details 15 Development of a Super-Directional System, Past, Present and Future Meija, Jorge; von Hoesel, Richard; O’Brien, Anna... In: ETSU Faculty Works (2014) BASE Show details 16 Stepping Through the Evidence of Hearing Aid Selection and Fitting Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details 17 Perspectives from Abroad on Hearing Aid Fitting and Dispensing Practices: Part 2 Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details 18 Patient Preference for Generic Prescription Alternatives at the Initial Fitting Kirbo, A.; Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details 19 Considerations for Programming Hearing Aids for Children Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details 20 The Efficient Frontier of Normal Hearing Versus the Restoration of Sensorineural Hearing Impairment via Advanced Hearing Aids Johnson, Earl E. In: ETSU Faculty Works (2014) BASE Show details Page: 1 2 3 4

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