This website was created to help people improve their American English pronunciation. At the core is a series of videos explaining in detail how each sound is created, as well as a blog.
How to make this sound:
Video Text:
The ah sound. The jaw drops more on this sound than it does on any other vowel sound. Ah, ah. And as you can see, the tongue is laying there on the bottom of the mouth. Ah. So, the jaw drops here, make the sound, ah: pretty basic, simple, and straightforward. Ah. Sample words: father, collar, calm. Sample sentence: The party at the bar was a mob scene.
International Phonetic Alphabet symbol: [
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This this sound's occurrence in other languages on Wikipedia's page.