ENGLISH VOWELS: AA vs. EH

'AA' versus 'EH'

Let's compare these two  American English vowel sounds.  

For the 'AA' vowel, the tongue lifts more in  the back. For the 'EH' vowel, it's more of an  

even lifting from the middle. For both of these  vowels, the tongue tip is forward, touching the  

backs of the bottom front teeth. It's subtle,  but I would say there's a little more jaw drop  

for 'AA' than for 'EH.' You may notice for this  vowel, that the top lip lifts just a little bit.