Voice in novels clarified

 I often wonder why most authors don't address a character's voice. They do pay attention to the author's voice, the story's voice, or the point of view.

Maybe when writing they don't think about it. So, one must describe some of the characters' voices, please.

Is he/she throaty, (like Marilyn Monroe), chirpy, halting, stuttery, high-pitched, low-low (like Scotty McCreery), staccato, flighty, deep (like the cookie monster, lol), have an accent (like Sean Connery)?

Enrich your story with characters' voices.