Pronunciation Skills American English Pronunciation Practice. Minimal pair practice and quizzes by Charles Kelly. American English Pronunciation. Exercises for every sound with audio available. International Phonetic Association's Home Page. American Spoken English in Real Life. Learn how to speak naturally. Mouth Mangler. A fun site with audio and let you repeat many times. Pronunciation for Korean. Categorized exercises for both segmentals and supersegmentals. Sentence Stress. What sentence stress is, why it is important. Sounds of English. Detailed instruction on how to pronounce each sound. Vowels of American and British English. Vowel charts and database Word Stress. Learn where to put a stress in a word. Online English Pronunciation from Okanagan University College.