Title :
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
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;
Conference_Titel :
Services Computing Conference (APSCC), 2011 IEEE Asia-Pacific
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4673-0206-7
DOI :
10.1109/APSCC.2011.25
