{HEAD ~ The signal} digitized in the first signal path and the signal that is digitized in the second signal path are fed to {TAIL ~ a digital signal processor} , which generates the digital output signal  
{ HEAD ~ The signal } digitized in the first signal path and the signal that is digitized in the second signal path are fed to { TAIL ~ a digital signal processor } , which generates the digital output signal
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH