Short And Long Sounds Of Vowels. Vowel sounds can be short, long, or silent. The letters oi can make an oy sound when they appear in the middle of a syllable
A vowel letter can also have short sounds.
From here, we can divide english vowel sounds up into a couple of categories: The length and the sound of a vowel can change according to its position in a word and the pronunciation. In english spelling each vowel letter has two main sounds. For example, cut and cute are pronounced differently, but which one has the long u sound?