连贯性(哲学赌博策略)
计算机科学
语音增强
估计员
加权
信号(编程语言)
算法
语音识别
立体声录音
利用
话筒
人工智能
数学
声学
降噪
电信
物理
统计
程序设计语言
声压
计算机安全
作者
Heinrich W. Löllmann,Andreas Brendel,Walter Kellermann
标识
DOI:10.1109/icassp40776.2020.9054470
摘要
This contribution presents a novel approach for coherence-based signal enhancement. An estimator for the coherent-to-diffuse ratio (CDR) is devised, which exploits the concept of generalized magnitude coherence and thus, unlike common state-of-the-art schemes, can simultaneously take advantage of more than two microphones. Moreover, the speech enhancement by CDR-based spectral weighting is not performed as a post-filtering step, but by enhancing the most appropriate microphone signal. This signal is implicitly determined as part of the CDR estimation such that the presented technique does not depend on an estimation of the direction-of-arrival (DOA) or similar side-information about the desired source.The application of the new approach to binaural hearings aids shows that it achieves a consistently better speech enhancement performance than comparable state-of-the-art approaches.
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