The science of how people produce and perceive speech, phonetics has an array of real-world applications, from helping engineers create an authentic sounding Irish or Canadian accent for a GPS voice, to assisting forensics investigators identifying the person whose voice was caught on tape, to helping a film actor make the transition to the stage. Phonetics is a required course among students of speech pathology and linguistics, and it's a popular elective among students of telecommunications and forensics. The first...