In the Italian alphabet there are 5 vowels: a, e, i , o, u, as in English, but pronounced differently. In fact, there are only 7 Italian vowel sounds, while in English there are around 15 or so.
Pronunciation errors are predictable and the majority of them involves the vowels pronunciation. Because of that, it's essential to learn how to pronounce vowels correctly in order to avoid fossilization, the process in which mistakes become a habit, difficult to be corrected.
ONE-SOUND VOWELS
The three one-sound Italian vowels are: a, i, u.
Let's listen to their sounds checking the following chart: