Research Topics
| Ruth BentlerSummaryAffiliation: University of Iowa Country: USA Publications
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Detail Information
Publications
Predictive measures of directional benefit part 1: estimating the directivity index on a manikinAndrew B Dittberner
Department of Speech Pathology and Audiology, The University of Iowa, Iowa City, Iowa, USA
Ear Hear 28:26-45. 2007..In this investigation, a method for computing a directivity index (DI) on a manikin for directional microphones in hearing aids was proposed and evaluated comparatively to other conventional methods...
Using a signal cancellation technique involving impulse response to assess directivity of hearing aidsYu Hsiang Wu
Department of Communication Sciences and Disorders, The University of Iowa, Iowa City, Iowa 52242, USA
J Acoust Soc Am 126:3214-26. 2009..The results revealed that the IR method was an accurate and repeatable way to assess slow-acting directional systems in noise of varying intensities and fast-acting systems in noise of high intensities...
Impact of visual cues on directional benefit and preference: Part I--laboratory testsYu Hsiang Wu
Department of Communication Sciences and Disorders, The University of Iowa, Iowa City, Iowa 52242, USA
Ear Hear 31:22-34. 2010....
Impact of visual cues on directional benefit and preference: Part II--field testsYu Hsiang Wu
Department of Communication Sciences and Disorders, The University of Iowa, Iowa City, Iowa 52242, USA
Ear Hear 31:35-46. 2010....
Measuring cochlear implant satisfaction in postlingually deafened adults with the SADL inventoryHua Ou
Department of Communication Sciences and Disorders, University of Iowa, Iowa City, IA 52242, USA
J Am Acad Audiol 19:721-34. 2008..Because the SADL inventory has been shown to have good psychometric properties for use within hearing aid users, the present study adapted the SADL for CI use and assessed the validity and reliability of the adapted version...
Impact of digital labeling on outcome measuresRuth A Bentler
Department of Speech Pathology and Audiology, The University of Iowa, Iowa City, Iowa 52242, USA
Ear Hear 24:215-24. 2003..The purpose of this study was to determine whether the label attached to the hearing aid being presented would bias outcome measures towards newer technological designs...
Hearing-in-Noise: comparison of listeners with normal and (aided) impaired hearingRuth A Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City, IA 52242, USA
J Am Acad Audiol 15:216-25. 2004....
Evaluation of an adaptive directional system in a DSP hearing aidRuth A Bentler
The University of Iowa, Iowa City, IA 52246, USA
Am J Audiol 13:73-9. 2004..Self-report measures obtained after blinded home trials were consistent with laboratory findings that the participants did not perceive this adaptive microphone design to be more effective than the default fixed-microphone option...
Quantification of directional benefit across different polar response patternsRuth A Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City 52242, USA
J Am Acad Audiol 15:649-59; quiz 660. 2004..Of particular interest was the monofit condition: Performance on speech perception tests was the same whether one or two directional microphones were used...
Digital noise reduction: outcomes from laboratory and field studiesRuth Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City, IA 52242, USA
Int J Audiol 47:447-60. 2008..Self-report measures indicated significantly higher aversiveness in the DNR-off condition compared to the pre-test scores...
Effectiveness of directional microphones and noise reduction schemes in hearing aids: a systematic review of the evidenceRuth A Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City 52242, USA
J Am Acad Audiol 16:473-84. 2005..For the clinician, the outcomes reported herein should encourage use of such a systematic review to drive clinical practice...
Evaluation of a second-order directional microphone hearing aid: I. Speech perception outcomesRuth Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City, IA 52242, USA
J Am Acad Audiol 17:179-89. 2006....
Digital noise reduction: an overviewRuth Bentler
Department of Speech Pathology and Audiology, University of Iowa, Iowa City, IA 52242, USA
Trends Amplif 10:67-82. 2006..The purpose of this article is to overview these schemes in terms of their differences and similarities...
Predictive measures of directional benefit part 2: verification of different approaches to estimating directional benefitAndrew B Dittberner
Department of Speech Pathology and Audiology, The University of Iowa, Iowa City, Iowa, USA
Ear Hear 28:46-61. 2007..In this investigation, the relation between various directivity measures and subject performance with directional microphone hearing aids was determined...
Compression-dependent differences in hearing aid gain between speech and nonspeech input signalsRebecca Warner Henning
University of Iowa, Iowa City, IA, USA
Ear Hear 26:409-22. 2005..It is therefore recommended that hearing aid "use" gain or output be measured with a real speech signal. If a nonspeech signal must be used, then it should have spectral and temporal properties that are similar to speech...
Using a signal cancellation technique to assess adaptive directivity of hearing aidsYu Hsiang Wu
Department of Speech Pathology and Audiology, University of Iowa, Iowa City, Iowa 52242, USA
J Acoust Soc Am 122:496-511. 2007..This method was shown to be an accurate and reliable way to assess the directivity of the adaptive DMHA in a high-intensity-jammer condition...
Measurement of hearing aid internal noiseJames D Lewis
Department of Communication Sciences and Disorders, University of Iowa, Iowa City, Iowa 52242, USA
J Acoust Soc Am 127:2521-8. 2010..Quantifying internal noise as the variance of the output measures allows for noise to be measured under real-world processing conditions, accounts for all sources of noise, and is predictive of internal noise audibility...
The effects of hearing aid compression parameters on the short-term dynamic range of continuous speechRebecca L Warner Henning
University of Iowa, USA
J Speech Lang Hear Res 51:471-84. 2008..The purpose of this study was to evaluate and quantitatively model the independent and interactive effects of compression ratio, number of compression channels, and release time on the dynamic range of continuous speech...
Fitting hearing aids using clinical measures of loudness discomfort levels: an evidence-based review of effectivenessH Gustav Mueller
Department of Hearing and Speech Sciences, Graduate Studies and Research, Vanderbilt University, Nashville, TN 37232 8242, USA
J Am Acad Audiol 16:461-72. 2005..Additional research in this area, especially research employing randomized controlled trials would be a useful addition to this body of literature...
