Vowel sounds are a key feature of every language, but the actual vowel sounds vary from one language to another. The English language contains about twenty vowel sounds, some of which are pure vowels and some of which are a combination of vowel sounds called diphthongs. In this episode, we explore the pure vowel sounds used in Modern English, and we examine how slight changes in the vowel sounds contribute to accent differences within Modern English. TRANSCRIPT: EPISODE 140