Outputted is data over N sets of sound channels through time division multiplexing to M sets of independent digital/analog converting means for converting {HEAD ~ sound channel digital data} into {TAIL ~ an analog sound signal} 
Outputted is data over N sets of sound channels through time division multiplexing to M sets of independent digital / analog converting means for converting { HEAD ~ sound channel digital data } into { TAIL ~ an analog sound signal }
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL