A decoding method 49 wherein said adapting and grouping also segments said spectral blocks into subblocks, and wherein said generating sample blocks effectively applies a single inverse discrete transform to {HEAD ~ pairs} of {TAIL ~ said subblocks} 
A decoding method 49 wherein said adapting and grouping also segments said spectral blocks into subblocks , and wherein said generating sample blocks effectively applies a single inverse discrete transform to { HEAD ~ pairs } of { TAIL ~ said subblocks }
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 OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL