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ucin1052327314.pdf (539.2 KB)
ETD Abstract Container
Abstract Header
Noise Reduction in Digital Hearing Aids Using Environmental Sounds
Author Info
SUMME, LORI ANN
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1052327314
Abstract Details
Year and Degree
2003, MA, University of Cincinnati, Allied Health Sciences : Communication Sciences and Disorders.
Abstract
Noise reduction in digital hearing aids is often tested using speech-weighted noise. Environmental sounds such as rain or an oscillating fan can also be used to determine the efficacy of noise reduction algorithms. The algorithms of four digital hearing aids were examined in the presence of five environmental sounds. Methods: Cool Edit 2000 was used to analyze the speech spectrum before and after noise reduction. The FAAF test was used as the speech sample. Recorded versions of a fan, a 727, ocean waves, rain, and a subway served as background sounds. The Natura, Signia, Lumina, and Danalogic hearing aids were used to compare noise reduction algorithms. Results: Noise reduction algorithms did not attenuate environmental sounds as well as they reportedly attenuated speech-weighted babble, in three of the four hearing aids tested. Only one hearing aid effectively attenuated the environmental sounds tested to an acceptable degree.
Committee
Dr. Laura Kretschmer (Advisor)
Pages
104 p.
Subject Headings
Health Sciences, Audiology
Keywords
noise reduction algorithms
;
digital hearing aids
;
environmental sounds
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Citations
SUMME, L. A. (2003).
Noise Reduction in Digital Hearing Aids Using Environmental Sounds
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1052327314
APA Style (7th edition)
SUMME, LORI.
Noise Reduction in Digital Hearing Aids Using Environmental Sounds.
2003. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1052327314.
MLA Style (8th edition)
SUMME, LORI. "Noise Reduction in Digital Hearing Aids Using Environmental Sounds." Master's thesis, University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1052327314
Chicago Manual of Style (17th edition)
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Document number:
ucin1052327314
Download Count:
876
Copyright Info
© 2003, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.