The vowel sound that is heard in this ie word is:
The vowel sound that is heard in the word, Brief is the short vowel sound. The denotation of the word according to its sound is this: /briːf/. It can be seen in this case that the I is a short form of the vowel sound.
Note that there are about 20 vowel sounds in the English Language.
Learn more about Vowel sounds here:
https://brainly.com/question/4222326
#SPJ1