This document discusses English vowels and their articulation. It explains that vowels are produced with an open vocal tract compared to consonants, with vibration of the vocal folds. The quality of a vowel depends on the shape and movement of the vocal tract as air passes through, such as whether parts of the tongue are raised or lowered and if the lips are spread or rounded. It also mentions the vowels /sɜːv/, /sɜːrv/, /ˈɜːli/, and /ˈɜːrli/ as examples and lists that the lips can be rounded, spread, or relaxed during vowel production.

1. chapter 5
Phonetics: The English Vowels

5. groups of english sound not
english letters

8. Chapter 5
English Vowels
All vowel sounds share some articulatory properties. Unlike consonants,
vowels are produced with no significant obstruction of air that flows from the lungs.
They are made with the vocal tract more open than when it is used to produce
consonants. Moreover, the vibration of the vocal folds is the sound source for
vowels, so vowels are usually voiced. The quality of a vowel depends on the
movement and shape of the vocal tract as air passes through (Fromkin et al.
2007). For instance, certain part of the tongue is raised or lowered, and the lips are
spread or rounded when a vowel is produced.

22. Lips rounding
• Our lips can be rounded
• Our lips can be spread
• Our lips can be relaxed

39. /sɜːv $ sɜːrv/ /ˈɜːli $ ˈɜːrli/

40. • /ʊ/