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: $ 10万
• 依托单位: AUDIOLOGICAL ENGINEERING CORPORATION
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-01 至 1998-05-31
• 项目状态: 已结题
• 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

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.

描述（根据调查员的摘要改编）：此提案， 在第二次修订中，着重于提高有效的S/N比率 助听器和人工耳蜗通过一种技术 当信号导致总带能量达到时增加增益 变得更大。 通过信号的适当设计 - 调理电路元素，包括 系统中的定向麦克风，可以改善 接收器的定向选择性。 结果 当然，信号/噪声比的有效增加应提高 语音流的清晰度。 作为另一项研究的一部分 项目，该系统被整合到设计为 听力受损的人的触觉援助。