Hi Blank,
Nice talking as though you know a lot... but i think you know nothing...
When i talk about the caucasian voices vs asian voices, i'm talking about a generalisation. Population is a big number, so i cannot speak for all. But if you think you know caucasian voice, i bet you don't, unless your ears have been so stuck, you can't make out the difference. Screw with all that theory, use your ears for once. I know of many music theorist who never did a good job because they only use their math and not their ears..
Caucasian voice in general is different from asian. Ever talk to a white man and notice how their voice tend to sound more rough in general with a strong thickness in tone... unless you didn't hear them speak. I'm talking in general... so don't quote me back with one loud mouth thick voice asian man that you find somewhere.
To tell you the truth, i don't know deep in detail the biology behind the difference, i'm not a biologist, i'm a musician. I mix around with the crowd and i've stayed overseas in aus for many years. I can see the difference, can you?? Or you have been so much at home studying your theory books that you don't get out much.. trying getting out more..
Next thing... i didn't mention that smoking doesn't lower your vocal range, i agree, it does. I'm not saying that smoking helps your voice more, do read my sentences properly. I'm saying that smoking cause more huskiness to the voice, which if it's what a person is looking for, that rock voice, then it's their objective. I see facts for facts, i don't place that "thick head" biasness that you have and blind your eyes or ears with it. Many things in life isn't what you think you like that is right, everyone has their own objective they want to achieve. I don't question their objective, i don't say their objective is wrong and they should follow mine instead. So i hope you be more open minded to know that what you think is right is only what you think.
I know for a fact that getting a good rock voice doesn't mean smoking is the only solution, if that's the case, all rock singers are smokers. Though most are, i've known and read about techniques that improves rock singing. But facts are still facts, smoking still causes the voice to be more husky.
If you ask me, i think you are the real immature kid around, since you cannot understand what i'm talking about. Learn to wisen up, read other's words properly, stop using only your "belief" to talk and start using your ears...