Research on the Amplitude Mismatch in Dual-microphone Device

摘要：

　　Array-based speech enhancement technology uses the spatial information for noise suppression,especially for situation that the desired speech and ambient noise originate from different orientations.For pocket mobile devices,such as hearing aid and cochlear implant,the size constraint is one of the keys in product design,so the dual-microphone system is more suitable for these applications.However,the actual microphone is different from the ideal one in theoretical analysis and algorithm design,and the mismatch between microphones always exists.The nuances of the microphone sensitivity and the gain difference in dual-channel amplifiers can both result in amplitude mismatch.This paper focuses on the research of amplitude-mismatch characteristic and the corresponding influences in beamforming and noise suppression.

关键词： amplitude mismatch dual-microphone device beamforming

作者: Yousheng Chen Qin Gong Tao Zhang

作者单位: Dept. of Biomedical Engineering, Tsinghua University, Beijing, China Tsinghua National Laboratory for Information Science and Technology(TNList), Tsinghua University, Be

会议类型: 国际会议

会议名称: 2013 ICME International Conference on Complex Medical Engineering(2013 ICME复合医学工程国际会议)

会议地点: 北京

会议语种:英文

页码: 433-438

在线出版日期: 2013-05-25（万方平台首次上网日期，不代表论文的发表时间）