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