More specifically, it provides {HEAD ~ a method} of flexibly choosing {TAIL ~ an “operating point}” somewhere between matrixed surround and fully parametric reconstruction  
of flexibly choosing
More specifically , it provides { HEAD ~ a method } of flexibly choosing { TAIL ~ an “ operating point } ” somewhere between matrixed surround and fully parametric reconstruction
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH