mˈæk wˈɪni ɪz bˈɛst nˈoʊn fɔːɹ hɪz kˌɑːmpətˈɪʃən mˈɑːdəl ʌv lˈæŋɡwɪdʒ ɐkwɪsˈɪʃən ænd fɔːɹ kɹiːˈeɪɾɪŋ ðə tʃˈaɪldəz tʃˈaɪld lˈæŋɡwɪdʒ dˈeɪɾə ɛkstʃˈeɪndʒ sˈɪstəm ænd tˈɔːk bˈæŋk kˈɔːɹpoːɹə.
MacWhinney is best known for his competition model of language acquisition and for creating the CHILDES (Child Language Data Exchange System) and TalkBank corpora.