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TIME DOMAIN FILTERING--ENHANCING SPEECH IN NOISE

TIME DOMAIN FILTERING--ENHANCING SPEECH IN NOISE
时域过滤——增强噪声中的语音
批准号：
2014630
负责人：
DAVID L FRANKLIN
金额：
$10.0万
依托单位：
AUDIOLOGICAL ENGINEERING CORPORATION
依托单位国家：
美国
项目类别：
财政年份：
1997
资助国家：
美国
项目状态：
已结题
起止时间：
1997-09-01 至 1998-05-31
来源：
https://reporter.nih.gov/project-details/2014630
关键词：
behavioral /social science research tag biological signal transduction biomedical equipment development clinical biomedical equipment cochlear implants electrotactile communication hearing aids noise speech recognition

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英文摘要
DESCRIPTION (Adapted from the Investigator's Abstract): This proposal, in its second revision, focuses on improving effective S/N ratios for hearing aids and cochlear implants by means of a technique that increases gain when a signal causes the total in-band energy to become greater. By means of the appropriate design of signal- conditioning circuit elements, together with the inclusion of a directional microphone in the system, it is possible to improve the directional selectivity of the receiver. The consequent effective increase in the signal/noise ratio should of course improve intelligibility of the speech stream. As part of another research project, this system is being incorporated into a device designed as a tactile aid for hearing-impaired persons.
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