The /ɔ/ as described by Wikipedia is an unelisioned "aw" sound, as in the pure Latin vowel "o" for those singers out there. The /ʌ/ sound, as found in the word "plus", is an open-backed "uh". Close off the back of the throat by dropping the soft palate, bringing the jaw back and/or raising the back of the tongue and you have what most Americans would call a "schwa" (/ə/) as in the second syllable of "special".

In most American English dialects/accents, the mouth is held in a more open, relaxed position while speaking than for most British accents. This can tend to make "aw" sound more like more like "ah", and "ah" like an open short "a" as in "bat". Similarly, the opening of the lips leads to closing off the back of the throat to provide nuances between vowels, which can make "uh" sound like "ugh", "oo" sound like "eu", etc. Vocal coaches tear their hair out over this natural accent, especially in the deep South and Texas, where the "twang" pollutes the "pure" Latin vowels normally desired for singing in almost any language.

However, I doubt you will find an English dialect where a particular vowel shape is never heard. First of all, there will always be a word in the language that even a heavily-accented speaker will pronounce using the shape you're looking for. It may be misplaced, but it'll be there. 

Second, there are degrees of vowel modification from what we would consider "neutral" American English to "accented", no matter the accent, so you will always find a person who speaks with just the right level of accent to use the vowel shape you're looking for at least some of the time. Urban residents tend to accent less than suburban and rural in my experience, and higher education, which normally involves a mingling of people from many locations nationwide, also tends to reduce accenting. Watching national broadcast TV also tends to reduce accenting, as most actors have their natural accents trained, coached, and/or beaten out of them while on camera.

Are there /ɔ/ and /ʌ/ sounds in informal American English?
In our field we continue to sell our product in terms of better user experience, easier to complete tasks, less pressure on user and so on. We do that being convinced that it benefits our customers and employers. This is great, because we make the digital world better and easier and more joyful.

Marketers also sell products and solutions to company to solve problems and issues. They too have a vision and a concept of a better digital world, but from a different facet. I’m often stunned by how they accomplish tasks and gain rightful trust by the customers.

Sometimes marketers and user experience experts are colliding; sometimes they work side by side in collaboration. But from a general notice – which marketing activity gets the best conversion rate marketing or UX? Does a dollar spent on UX make more ROI than a dollar spent on marketing?


