Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2005.11a
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- Pages.411-414
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- 2005
Development of Directional Digital Hearing Aid Performance Testing System
지향성 디지털 보청기의 성능 검사 장치 개발
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Jarng, Soon-Suck
(Dept. of Information Control and Instrumentation Eng, Chosun University)
;
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Kwon, You-Jung
(Dept. of Control and Instrumentation Eng, Chosun University)
;
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Lee, Je-Hyeong
(AlgorKorea)
- Published : 2005.11.26
Abstract
The most recent trend on digital hearing aid is to increase the ratio of signal to noise by directivity or to develop noise reduction algorithm inside DSP IC chip. This paper designed, fabricated and tested a digital hearing aid directivity testing device in which a micro-mouse-like the stepping motor with a speaker rotates around an examinant. Both ears of the examinant were fixed with ITE hearing aids in order to response to receiving sound. The diameter of the directivity testing device was 2 [m] and the micro-mouse was precisely controlled by PICBASIC micro processor.
Keywords