Now let's learn about the central valves. Remember with the central valves your tongue will be flat in your mouth, the tip of the tongue is not angled up, nor is the back of the tongue angled up. There are three central vowels ranging from medium to low fiber is medium, meaning the tongue is in the middle of the mouth with respect to height, or has the same jaw height, as the long a. Watch this, notice that my chin doesn't move when I go back and forth between long a and or a, or, a or so to do or what you want to do is kind of pinch the corners of your lips or to make your mouth very small. You'll also pull your tongue backward to make the art Sound, or next there's short you. It's also medium in height but it's a little bit lower than er short U is actually the same height as short E. Listen.

Ah ah, when I say short in short you, I don't really do anything different except for change the angle of my tongue, I lift the tongue up for short he and I put the tip of the tongue down for the short you. Ah, ah, ah, finally, the last Central Valley is the short Oh which is very low in the entire tongue is on the floor of the mouth. Short Oh has the same jaw height as short a. Now for the central vowels short Oh, you do not need to round your lips. We'll learn that later when we study back vowels.