American English Dialect Recordings (Lib. of Congress)The Center for Applied Linguistics Collection contains 118 hours of recordings documenting North American English dialects. It includes speech samples, linguistic interviews, oral histories, conversations, and excerpts from public speeches. ... Documentation covers social aspects of English language usage in different regions of the United States. It reveals distinctions in speech related to gender, race, social class, education, age, literacy, ethnic background, and occupations.)