The filter performs spectral subtraction on the frames using {HEAD ~ the determined power spectral densities} associated with {TAIL ~ the mixed signals} of the frames to reduce noise associated with the audio signal 
The filter performs spectral subtraction on the frames using { HEAD ~ the determined power spectral densities } associated with { TAIL ~ the mixed signals } of the frames to reduce noise associated with the audio signal
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH