Agreed. The samples sound identical to how many of my friends in Southern California speak. Some with hispanic heritage, some without. A slightly more open 'a'

Agreed. The samples sound identical to how many of my friends in Southern California speak. Some with hispanic heritage, some without. A slightly more open 'a' vowel, and a slightly different stressings on some syllables. I wouldn't say this is a new accent at all. The only thing peculiar is that it's Kansas, where you might not expect that same latin influence.