Jazz vocalists which may not be as real as we think/imagine


Sure we could include all genres of vocalists,  but lets focus on jazz performers,,for instance , take Diana Krall. 
I have a  pile of cds that i do not listen to, old rock,,, 2 are my wife's she picked up as gifts, and never listened.
So I figured maybe I can use DK's as a  test reference recording.
Her 1999 and 2001, both seem to my ears her voice is somehow ~~tweeked~~ laid out with modern aids such as EQ's and such.
My Q is , can we really consider DK's voice to be The Real Deal,,, or a  perhaps a toch of  ~ The Fake if not perhaps, bordering on, fraud. 
I really can not use her cds in my testing of new tweeks, mods, , Her voice comes across wayyyy too warm = Colored = a nono for my ears. 
I am after pure cold frigid, icy clean mountain spring water. 
Anyway, justa  random thought,, what say ye? Have you noticed this quirk among other jazz performers such as Sophie Milman, which btw , i do use in  my YT vid uploads of testing reference on tweeks/mods/upgrades. 
Her voice is at least somewhat more~~ a  natural~, Just barely,,had her engineers gonea  tad too far in tweeking, I may have to  also disreagrd her cds. 
Sure you might object and claim all recordings post 1985, have these intrusions of tweeking /EQing the voice, as a  makeover. 
I don't know, maybe in the past 20 yrs things have gotten out of hand. 
So cast your vote, is DK's voice real deal,, or a  tad fake?
Can she perform unpluged as she does on high tech studio records?
mozartfan
It's so much easier to just not like Diana Krall instead of crying foul at the production.  She doesn't stir my soul and it has nothing to do with any vocal manipulations.  Give me Nina Simone or Carmen McRae any day ;-)
MOZARTFAN this has been going on for 70 years just think elvis presley manufactured by RCA so if diana kralls voice is a tad fake all pop singer are they have all had eq in there records thats the real world hollywood and the music buz is fake

eah well what i was getting at , what might back in Elvis day , been touch ups, now how computer TECHNOLOGY involved, = game changer. 
Touch ups are one thing , but outright modulations , is going too far from ~~natural~~
https://www.youtube.com/watch?v=sVdaFQhS86E
Keep Sophie Millman out of it. She has a wonderful sultry voice and delivery and the recordings are quite good.
This is just microphones we're talking here.

Well lets hope fine Neumann tube mics are involved, , its what the **recording emgineers* manipulate after wards lies the problem. 
Diana should have told studio, no thats too warmish,,I do not sound like that in reality. Lets keep it more real..
Agree all recordings post 1985 are manipulated to a  degree that is far off whats real.