{HEAD ~ The speakers speech signal} emphasizing part 26 conducts {TAIL ~ synchronous addition processing} of a speakers speech signal among the input speech signals inputted through the microphones 20′a and 20′b, and emphasizes the speakers speech signal 
conducts
{ HEAD ~ The speakers speech signal } emphasizing part 26 conducts { TAIL ~ synchronous addition processing } of a speakers speech signal among the input speech signals inputted through the microphones 20′a and 20′b , and emphasizes the speakers speech signal
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