TY - GEN
T1 - A digital hearing aid that compensates loudness for sensorineural impaired listeners
AU - Asano, F.
AU - Suzuki, Y.
AU - Sone, T.
AU - Kakehata, S.
AU - Satake, M.
AU - Ohyama, K.
AU - Kobayashi, T.
AU - Takasaka, T.
PY - 1991
Y1 - 1991
N2 - A method of designing a digital hearing aid suitable for sensorineural hearing loss with a narrow audible range is proposed. The input signal is divided into short-time blocks (8 ms), and its spectrum is calculated using short-time fast Fourier transforms. The frequency-gain characteristic of the block is determined using the calculated spectrum and loudness compensation functions which describe the relation between the loudness perceived by normal listeners and that perceived by an impaired listener. The input signal within the block is processed by a single digital filter using the calculated gain characteristics. This algorithm is realized using a digital signal processor. The results of monosyllabic speech tests that the scores of the speech test for the proposed system were improved over a wide range of input levels compared with those for the linear system for 9 of 13 sensorineural impaired subjects.
AB - A method of designing a digital hearing aid suitable for sensorineural hearing loss with a narrow audible range is proposed. The input signal is divided into short-time blocks (8 ms), and its spectrum is calculated using short-time fast Fourier transforms. The frequency-gain characteristic of the block is determined using the calculated spectrum and loudness compensation functions which describe the relation between the loudness perceived by normal listeners and that perceived by an impaired listener. The input signal within the block is processed by a single digital filter using the calculated gain characteristics. This algorithm is realized using a digital signal processor. The results of monosyllabic speech tests that the scores of the speech test for the proposed system were improved over a wide range of input levels compared with those for the linear system for 9 of 13 sensorineural impaired subjects.
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U2 - 10.1109/icassp.1991.151059
DO - 10.1109/icassp.1991.151059
M3 - Conference contribution
AN - SCOPUS:0026389092
SN - 0780300033
T3 - Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
SP - 3625
EP - 3628
BT - Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing
PB - Publ by IEEE
T2 - Proceedings of the 1991 International Conference on Acoustics, Speech, and Signal Processing - ICASSP 91
Y2 - 14 May 1991 through 17 May 1991
ER -