Keeping track of an elemental speech unit that is currently being processed and generating the corresponding facial configuration allows {HEAD ~ the synthetic speech system} to resynchronize {TAIL ~ the video portion} of the synthetic speech with the audio portion of the synthetic speech without requiring generation of the video portion at regular intervals 
to resynchronize
Keeping track of an elemental speech unit that is currently being processed and generating the corresponding facial configuration allows { HEAD ~ the synthetic speech system } to resynchronize { TAIL ~ the video portion } of the synthetic speech with the audio portion of the synthetic speech without requiring generation of the video portion at regular intervals
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH