The apparatus 18, wherein {HEAD ~ the pre equalization estimator} performs one of an interpolation and an extrapolation on {TAIL ~ the prefiltering values} of the second frames 
The apparatus 18 , wherein { HEAD ~ the pre equalization estimator } performs one of an interpolation and an extrapolation on { TAIL ~ the prefiltering values } of the second frames
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH