METHOD AND SYSTEM FOR SEPARATING PLURALITY OF ACOU

专利名称：METHOD AND SYSTEM FOR SEPARATING

PLURALITY OF ACOUSTIC SIGNALSGENERATED BY PLURALITY OF ACOUSTICSOURCES

发明人：RAMAKRISHNAN, Bhiksha,GOMEZ, Manuel, J.

Reyes

申请号：EP03789598.4申请日：20031211公开号：EP1568013A1公开日：20050831

摘要：A method separates acoustic signals generated by multiple acoustic sources,such as mixed speech spoken simultaneously by several speakers in the same room. Foreach source, the acoustic signals are combined into a mixed signal acquired by multiplemicrophones, at least one for each source. The mixed signal is filtered, and the filteredsignals are summed into a signal from which features are extracted. A target sequencethrough a factorial HMM is estimated, and filter parameters are optimized accordingly.These steps are repeated until the filter parameters converge to optimal filteringparameters, which are then used to filter the mixed signal once more, and the summedoutput of this last filtering is the acoustic signal for a particular acoustic source.

申请人：MITSUBISHI DENKI KABUSHIKI KAISHA

地址：2-3, Marunouchi 2-chome, Chiyoda-ku Tokyo 100-8310 JP

国籍：JP

代理机构：Gleiter, Hermann

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