interesting~ I think, when referring to pitch (soprano, contralto, etc) there is a set of terms "low/deep" or "high-pitched/squeaky" but there's another set of terms for the nature of the voice itself "gravelly, raspy, nasal, etc." A gravelly voice can be deep or high, just like a nasal voice can be high or low. But that's just a guess, I probably don't know what I'm talking about :D a good example of a low nasal voice would be Richard Ayoade! and a HIGH nasal voice would be Eric Foreman's mom Kitty from That 70's Show...