In some embodiments, {HEAD ~ the method} includes using {TAIL ~ an up conversion stage} to up convert a recovered narrowband signal to produce a suppression signal 
includes using
In some embodiments , { HEAD ~ the method } includes using { TAIL ~ an up conversion stage } to up convert a recovered narrowband signal to produce a suppression signal
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH