Introduction to Articulatory Phonetics (Vowels)

This video delves into articulatory phonetics, specifically how linguists describe vowel sounds. It focuses on North American English and distinguishes between monophthongs (one vowel quality) and diphthongs (two vowel qualities). Unlike consonants, vowels do not involve constriction of airflow, so different criteria are used for their description.

The three main criteria for describing vowels are height, backness, and roundedness. Height refers to how high or low the tongue is in the mouth. For example, saying [i] and [a] demonstrates the tongue moving up and down. Vowels are categorized as high, mid, or low, with [i] being a high vowel and [ɑ] a low vowel.

Backness describes how far front or back the tongue is. Saying [i] and [u] illustrates the tongue moving forward and backward. Vowels are classified as front, central, or back. For instance, [i] is a front vowel, and [u] is a back vowel.

Roundedness indicates whether the lips are rounded during vowel production, which is easily observable. Comparing [u] and [i], [u] is a rounded vowel while [i] is not. An example of a combined description is [u] as a high back rounded vowel.

Linguists follow a specific order when describing vowels: height, then backness, then roundedness. For diphthongs, both the starting and ending vowel qualities must be categorized using these criteria, though this video primarily focuses on monophthongs.