{HEAD ~ The speakers speech signal} emphasizing {TAIL ~ part} 26 conducts 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 
{ HEAD ~ The speakers speech signal } emphasizing { TAIL ~ part } 26 conducts 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
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH