Discourse/Linguistic Analyses of Speech / Scientic analyses of speech primarily determine the intent of speakers, whether or not the speakers have a mutal understanding during the conversation, and to provide a basis of an entrapment defense / "process" "processing" "digital signal processing" "audible" "intelligible" "sound" "noise" "acoustics" "speech" "language" "discourse" "speaker" "conversant" "wiretap" "conversation" "entrapment" "authenticity"