Intermediate - Advanced Level. Designed to reduce foreign accents that interfere with effective communication, these two programs, one concentrating on vowels and the other on consonants, include a complete treatment on each as well as diphthongs, stress, rhythm, and intonation patterns of American English. Although planned especially for Spanish speakers, the material is applicable to all non-native speakers. (English Pronunciation for Spanish Speakers Consonants and English Pronunciation for Spanish Speakers Vowels.)