64 Channel Digital Hearing Aid Emdedded Firmware

Author

Jarng, Soon-Suck ; Samuel, Mano ; Lee, Je-Hyung

Author_Institution

Dept. of Control & Instrum. Robot. Eng., Chosun Univ., Gwangju, South Korea

fYear

2011

fDate

12-15 Dec. 2011

Firstpage

395

Lastpage

401

Abstract

This paper presents some results of a 64 channel digital hearing aid firmware development. Along with nonlinear voice compression, we present noise reduction, microphone & receiver calibration and in-situ algorithms with some results. The FFT-iFFT based compression method can generalize the nonlinear arbitrary compression scheme in connection with spectral noise reduction scheme. Spectral subtraction method was used for noise reduction, but noise spectrum was continuously updated by detecting signal level.

Keywords

calibration; data compression; fast Fourier transforms; firmware; handicapped aids; hearing aids; medical computing; microphones; signal denoising; spectral analysis; speech coding; FFT-iFFT; digital hearing aid emdedded firmware; in-situ algorithm; microphone; nonlinear arbitrary compression scheme; nonlinear voice compression; receiver calibration; spectral noise reduction scheme; spectral subtraction method; Auditory system; Calibration; Microphones; Noise; Noise measurement; Noise reduction; Receivers; 64 channels; calibration; digital hearing aid; firwmare; fitting software; in-situ; noise reduction;

fLanguage

English

Publisher

ieee

Conference_Titel

Services Computing Conference (APSCC), 2011 IEEE Asia-Pacific

Conference_Location

Jeju Island

Print_ISBN

978-1-4673-0206-7

Type

conf

DOI

10.1109/APSCC.2011.25

Filename

6128012