Title:
補聴器用の音声信号処理システムの設計方法、補聴器用の音声信号処理システム、および補聴器
Document Type and Number:
Japanese Patent JP5305306
Kind Code:
B2
Abstract:
A hearing aid tailored to a hard-of-hearing person is designed using sampled-data control theory. The method is for designing an audio signal processing system for a hearing aid, wherein the system comprises an AD converter for converting an analog audio input signal (yc) inputted to the hearing aid into a digital audio input signal, a hearing aid digital filter (K(z)) for performing a signal processing on the digital audio input signal outputted from the AD converter, and a DA converter for converting a digital signal outputted from the hearing aid digital filter into an analog audio output signal to be outputted to the hard-of-hearing person. The hearing aid digital filter (K(z)) is designed according to sampled-data control theory so as to reduce an error (ec) occurring between: a restored analog signal (zc) obtained from filtering the analog audio output signal outputted from the DA converter through an analog filter (P(s)) that has characteristics corresponding to auditory characteristics of the hard-of-hearing person; and the analog audio signal (yc) inputted to the hearing aid.
Inventors:
Yuu Yamamoto
Masaaki Nagahara
Masaaki Nagahara
Application Number:
JP2010523847A
Publication Date:
October 02, 2013
Filing Date:
August 03, 2009
Export Citation:
Assignee:
Kyoto University
International Classes:
H04R25/00; H03H17/02
Domestic Patent References:
| JP2001358561A | 2001-12-26 | |||
| JP2000050395A | 2000-02-18 |
Attorney, Agent or Firm:
Patent Business Corporation Suncrest International Patent Office
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