a delay processing part for delaying the output speech signal in accordance with {HEAD ~ the delay amount} detected by {TAIL ~ the wraparound delay amount detecting part}, 
detected by
a delay processing part for delaying the output speech signal in accordance with { HEAD ~ the delay amount } detected by { TAIL ~ the wraparound delay amount detecting part } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH