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1	Evaluation of the self-fitting process with a commercially available hearing aid
	Convery, Elizabeth; Keidser, Gitte; Seeto, Mark. - : American Academy of Audiology, 2017
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2	Assessing hearing loss self-management in older adults
	Convery, Elizabeth; Meyer, Carly; Keidser, Gitte. - : Taylor and Francis, 2017
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3	Self-fitting hearing aids : status quo and future predictions
	Keidser, Gitte; Convery, Elizabeth. - : Sage Publications, 2016
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4	Factors affecting reliability and validity of self-directed automatic in situ audiometry : implications for self-fitting hearing aids
	Convery, Elizabeth; Keidser, Gitte; Seeto, Mark. - : American Academy of Audiology, 2015
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5	Identification of conductive hearing loss using air conduction tests alone : reliability and validity of an automatic test battery
	Convery, Elizabeth; Keidser, Gitte; Seeto, Mark. - : Lippincott Williams & Wilkins, 2014
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6	Factors influencing individual variation in perceptual directional microphone benefit
	Keidser, Gitte; Dillon, Harvey; Convery, Elizabeth; Mejia, Jorge. - : American Academy of Audiology, 2013
	Abstract: Background: Large variations in perceptual directional microphone benefit, which far exceed the variation expected from physical performance measures of directional microphones, have been reported in the literature. The cause for the individual variation has not been systematically investigated. Purpose: To determine the factors that are responsible for the individual variation in reported perceptual directional benefit.Research Design: A correlational study. Physical performance measures of the directional microphones obtained after they had been fitted to individuals, cognitive abilities of individuals, and measurement errors were related to perceptual directional benefit scores. Study Sample: Fifty-nine hearing-impaired adults with varied degrees of hearing loss participated in the study. Data Collection and Analysis: All participants were bilaterally fitted with a Motion behind-the-ear device (500 M, 501 SX, or 501 P) from Siemens according to the National Acoustic Laboratories' non-linear prescription, version two (NAL-NL2). Using the Bamford-Kowal-Bench (BKB) sentences, the perceptual directional benefit was obtained as the difference in speech reception threshold measured in babble noise (SRTn) with the devices in directional (fixed hypercardioid) and in omnidirectional mode. The SRTn measurements were repeated three times with each microphone mode. Physical performance measures of the directional microphone included the angle of the microphone ports to loudspeaker axis, the frequency range dominated by amplified sound, the in situ signal-to-noise ratio (SNR), and the in situ three-dimensional, articulation-index weighted directivity index (3D AI-DI). The cognitive tests included auditory selective attention, speed of processing, and working memory. Intraparticipant variation on the repeated SRTn's and the interparticipant variation on the average SRTn were used to determine the effect of measurement error. A multiple regression analysis was used to determine the effect of other factors. Results: Measurement errors explained 52% of the variation in perceptual directional microphone benefit (95% confidence interval [CI]: 34‐78%), while another 37% of variation was explained primarily by the physical performance of the directional microphones after they were fitted to individuals. The most contributing factor was the in situ 3D AI-DI measured across the low frequencies.Conclusions: Repeated SRTn measurements are needed to obtain a reliable indication of the perceptual directional benefit in an individual. Further, to obtain optimum benefit from directional microphones, the effectiveness of the microphones should be maximized across the low frequencies. ; 14 page(s)
	Keyword: directional benefit; directional microphone; directivity index; hearing aid; in situ measurements; speech reception threshold in noise; test-retest measurements
	URL: http://hdl.handle.net/1959.14/1221475
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7	Hearing-aid assembly management among adults from culturally and linguistically diverse backgrounds : toward the feasibility of self-fitting hearing aids
	Convery, Elizabeth; Keidser, Gitte; Caposecco, Andrea. - : Informa Healthcare, 2013
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8	Hearing-aid assembly management among adults from culturally and linguistically diverse backgrounds: toward the feasibility of self-fitting hearing aids
	Convery, Elizabeth; Keidser, Gitte; Caposecco, Andrea. - : Informa Healthcare, 2013
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9	Transitioning hearing aid users with severe and profound loss to a new gain/frequency response: benefit, perception, and acceptance
	Convery, Elizabeth; Keidser, Gitte. - : American Academy of Audiology, 2011
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10	The effect of multi-channel wide dynamic range compression, noise reduction, and the directional microphone on horizontal localization performance in hearing aid wearers
	Keidser, Gitte; Rohrseitz, Kristin; Dillon, Harvey. - 2006
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11	Preferred overall loudness. I: Sound field presentation in the laboratory
	Smeds, Karolina; Keidser, Gitte; Zakis, Justin. - 2006
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12	Preferred overall loudness. II: Listening through hearing aids in field and laboratory tests
	Smeds, Karolina; Keidser, Gitte; Zakis, Justin. - : Informa UK Limited, 2006
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13	A Review and analysis : does amplification experience have an effect on preferred gain over time?
	Convery, Elizabeth; Keidser, Gitte; Dillon, Harvey. - : Australian Academic Press Pty. Ltd, 2005
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