modifying the loop filter output samples of each of the N channels with the modification signal to generate {HEAD ~ modified loop filter output samples} for {TAIL ~ each} of the N channels 
modifying the loop filter output samples of each of the N channels with the modification signal to generate { HEAD ~ modified loop filter output samples } for { TAIL ~ each } of the N channels
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 HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH