|Open back unrounded vowel (Script A)|
Height: Low (open)
Note: Used as Cardinal Vowel 5, in which case it is defined as the maximally open and back unrounded vowel articulation which can be produced.
Ultrasound – half-speed
|Ken Stevens (1962)||X-Ray|
|University of South California||MRI; with noise||http://sail.usc.edu/span/videos/dai.mov|