in this American English pronunciation
video we're going to learn how to
pronounce the AI as in buy diphthong
diphthongs are a combination of two
sounds so they have a starting position
and an ending position in the first
position the jaw is more dropped than in
the second position the back of the
tongue stretches up a little bit as the
mouth moves into the second position the
jaw drops less as the front part of the
tongue arches up towards the roof of the
mouth for both the beginning and the end
of this diphthong the tongue tip touches
the back of the bottom front teeth let's
watch up close and in slow motion where
you can really see the front part of the
tongue arching up the jaw drops and the
front part of the tongue stays down with
the tip touching the back of the bottom
front teeth immediately the tongue moves
into the second position the top front
arching up towards the roof of the mouth
as the tongue arches up there's less jaw
drop here's the word high jaw drops with
the front of the tongue down then the
jaw lifts as the front of the tongue
arches towards the roof of the mouth in
a stressed syllable the I diphthong
curves up then down high I in an
unstressed syllable it's lower and
flatter and pitch as well as quicker and
quieter I I the diphthong is unstressed
in the word idea I let's take a look at
this word the jaw drops but just a
little bit less than it would in a
stressed syllable then the tongue arches
up towards the roof of the mouth before
the tip goes to the roof of the mouth
for the D
the eye diphthong stressed hi
I the I diphthong unstressed idea
i-i-i-i-i example words repeat with me
exercise
I exercise wine I wine bright eye bright
guy i guy allies I allies sky I sky