Browse > Article
http://dx.doi.org/10.5050/KSNVN.2006.16.1.081

Development of Directional Digital Hearing Aid Performance Testing System  

Jang, Soon-Suck (조선대학교 정보제어계측공학과)
Kwon, You-Jung (조선대학교 대학원 제어계측공학과)
Lee, Je-Hyeong (알고코리아)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.1, 2006 , pp. 81-88 More about this Journal
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 respond to receiving sound. The experimental results were compared with those of a boundary element method program for verification. The diameter of the directivity testing device was 2 m and the micro-mouse was precisely controlled by PICBASIC micro processor.
Keywords
Digital Hearing Aid; Directivity; ITE;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Lee, G. S., 2002, 'Hearing Aid., Otorhi-nolaryngology Head and Neck Surgery, Illchokak, Seoul, in Korea, Vol.22, pp. 727-742
2 Walden, B. E., and Surr, R. K., Cord M. T., 2003, 'Real-world Performance of Directional Microphone Hearing Aids.', Hear Jour., Vol. 56, No. 11, pp. 40-47
3 Valente, M., Sweetow, R. and May, A., 1999, 'Using Microphone Technology to Improve Speech Recognition, In S Kochkin & KE Stroms High Performance Hearing Solutions (V3)', The Hearing Review 6, pp. 10-13
4 Frye, G. J., 2001, 'Testing Digital and Analog Hearing Instrumentations : Processing Time Delays and Phase Measurement', The Hearing Review 8. pp. 1-8, 2001
5 Jarng, S. S., 2003, 'Gennum GB3211 ITE Hearing Aid Chip Interface and Electro-Acoustic Testing', Proc. of of Korea Sensor Society, No. 14, pp. 59-62
6 Kim, S. M., 2005, 'Acoustic Head Effects of the Directional Microphone for Hearing Aids', Gwangju Institute of Science and Technology, Thesis for Master's Degree, pp. 42-52
7 Jarng, S. S. and Kwon, Y. J., 2004, 'Digital Hearing Aids', Dooyang Publishing Co., Seoul, in Korea, pp. 104-112