The Acoustic Properties of Vowels: A Tool for Improving Articulation and Comprehension of English (Report)

Abstract Correct pronunciation is often a later step in the process of teaching English as a second language. However, a focus on the correct articulation of vowels can significantly improve listening and comprehension skills as well as articulatory skills. Vowels and consonants differ in their acoustic properties. Unlike consonants, vowel sounds are produced with very little obstruction of airflow, resulting in a difference in the way they sound. Vowels are more sonorous, or acoustically powerful, than consonants, thus we perceive them as both longer lasting and louder than consonants. The greater sonority of vowels also permits them to form the basis of syllables.