{HEAD ~ An encoder} converts the digital data into audio tones that synthesize {TAIL ~ frequency characteristics} of human speech 
{ HEAD ~ An encoder } converts the digital data into audio tones that synthesize { TAIL ~ frequency characteristics } of human speech
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH