Once And For All, Does Taylor Swift Use Auto-Tune?
Over the years, I don’t think I’ve ever seen a topic more beset with assumption, conjecture, and sometimes, idiocracy. Whether Taylor Swift uses Auto-Tune in either the live or recorded formats is not an opinion. Either she does, or she doesn’t, and the evidence we have to make those conclusions in many cases is obvious.
The most confounding, and unfortunately, one of the most common arguments I’ve seen made is that Taylor Swift must use Auto-Tune because she can’t sing. Unfortunately though, a symptom of using Auto-Tune would be that your pitch is perfect. That is the point of the program. So Taylor Swift singing out-of-tune would point to Taylor Swift not using Auto-Tune, not vice versa.
And some folks so willing to disbelieve all evidence even go as far as to say she purposely includes mistakes in her live routines to throw our Auto-Tune noses off the scent, or say that maybe she uses an alternative pitch correction program that allows her to officially say she doesn’t use Auto-Tune, when she still relies on pitch correcting software. But that’s the great thing about conspiracy theories. You don’t have to prove anything, you just have to create doubt.
The first thing you need to understand is that Taylor Swift has denied for years using any pitch correcting aids. These days, the battle to keep the use of Auto-Tune as a stigma in American music has been completely lost. If you are listening to an album meant for mass consumption, it very likely includes pitch correction. At the same time it’s probably not fair to assume that all artists use it. Taylor Swift has spent her career adhering to and articulating certain principals that allow her to be portrayed as “real,” and her stance of refusing to use Auto-Tune has been steadfast.
Taylor Swift is the “good girl,” and using Auto-Tune would not fit in in the “real” persona she portrays to the public. If she was ever caught using it, the facade around her persona would crumble, just like it did when Tiger Woods was caught cheating on his wife, instantly and dramatically devaluing Taylor’s name as a brand. The risk/reward is not worth it for Taylor to lie about it. Auto-Tune is socially acceptable in 2012. People would forgive Taylor for using it. But they probably wouldn’t forgive her for lying about it.
But you came here for a simple yes or no answer to if Taylor Swift uses Auto-Tune. So what is it?
Does Taylor Swift Use Auto-Tune live?
Absolutely not. And there’s such an overwhelming, insurmountable mountain of evidence pointing to that as being the truth, and that mountain continues to grow with every live Taylor Swift performance.
Aside from hundreds of live performances where Taylor Swift clearly sang out-of-tune, the other major piece of evidence we have is a personal exchange she had with music industry guru/critic Bob Lefsetz back in November of 2009. At that point, Bob Lefsetz was mostly known only by music industry insiders. When Lefsetz became the frontrunner for who Taylor Swift’s song “Mean” was about, that is when he became more of a pop culture figure. The legacy of Taylor Swift’s “Mean” actually didn’t start with her singing out-of-tune on the 2010 Grammy’s like many people think. It actually started a few months before, when Bob Lefsetz accused Taylor Swift of using Auto-Tune.

Appreciating the influence of Bob Lefsetz, Taylor Swift called him up personally, twice, from London, to vehemently deny her use of any pitch-correcting software. Swift went to great lengths to explain herself, and even invited Lefsetz to come to one of her live shows and inspect her gear to confirm it. Then Taylor had the head of her gear and lighting setup personally email Lefsetz and explain further. Here was Taylor, already having to deal with the criticism that she couldn’t sing, and at the same time having to fight off an Auto-Tune controversy. As Bob Lefsetz said at the time:
Said she could handle being criticized for having a bad voice, for missing notes. But she couldn’t live with being criticized for being inauthentic.
In short, there has never been one credible shred of evidence pointing to Taylor Swift using Auto-Tune live. And in fact all evidence points to the contrary.
Does Taylor Swift Use Auto-Tune recorded?
Ah ha. This is where it gets a little tricky. And if we are to believe the same Bob Lefsetz / Taylor Swift exchange that helped corroborate that Taylor does not use Auto-Tune live, the answer would be, “Yes.” In Lefsetz’s portrayal of his phone calls with Swift, he says:
Taylor got into it. How she didn’t even know how to use auto-tune, had never used it. Then again, she admitted to fixing some mistakes in the studio.
In other words, though Taylor has never and would never use Auto-Tune in the live context, in the studio, she’s admitted that she has used it, however sparingly.
Does this make Taylor Swift a liar? Seeing how the biggest piece of evidence that she does use Auto-tune in recordings is when she was fessing up to it to Lefsetz back in 2009, it’s pretty hard to call that a lie. The reason that pitch and Auto-Tune are such a constant thread of discussion around Taylor Swift is because of her issues singing in concert, so maybe this is the context that is most important. But then again, denying its use without being more specific may have not been the most forthright way for Taylor to handle the issue.
And then you can get bogged down in discussions on the use of Auto-Tune as an “effect.” Taylor clearly does this on numerous songs on her newest album Red. Is this breaking the no Auto-Tune rules, or no different than using reverb or a bullhorn to augment vocals?
The Real Issue
All of this talk is completely missing the point about what makes Taylor Swift so appealing to the American public. It’s what the people on the outside looking in don’t get, and the thing that I admittedly didn’t get for years. Taylor Swift detractors can talk until they’re blue in the face about how she can’t sing, or how she uses Auto-Tune, but they’ll never change a mind because people don’t love Taylor Swift despite her flaws, they love Taylor Swift because of her flaws. She personifies the beauty of American imperfection. Though some of her loyal fans will never admit it, we all know deep in our hearts Taylor is an average singer at best. Taylor Swift is flawed, clumsy, and in many ways, uncool. She’s a flat-chested, pencil-thin, pale and awkward little girl with perpetual neurotic love drama brought on by self-esteem issues.
In other words, she’s fucked up, just like the rest of us, which makes her real. And in a world where the food we eat is fake, the stuff we buy is fake, the jobs we work are fake, and most of the people we meet are fake, “refreshing” is not a strong enough word to describe the reason why the Taylor Swift phenomenon has transpired in popular culture. Little girls and their mothers look at Taylor Swift and they see themselves, and that trumps all concerns about singing or genre.
And that’s why Taylor Swift’s biggest problem is not singing. It’s Max Martin, Shellbeck, and The Country Music Anti-Christ, Scott Borchetta. Because they are the ones getting in the way of Taylor being herself by trying to make her perfect.
December 3, 2012 @ 12:57 pm
This article feels a little dated, considering Taylor’s recent performances have very obviously used backing tracks to compensate for the smallness of her voice on big choruses. She’s hardly even singing on the choruses of those Max Martin and Shellback songs anymore. But it’s not just those songs, it’s also songs like State Of Grace which she performed on US X Factor with a very obvious and very loud backing track.
Do you remember that Tennessean article after Taylor’s disastrous Grammy performance where Peter Cooper talked about many, maybe even most, country stars using live pitch correction? Do you believe him? I don’t think the current new generation of pop/country stars (Blake Shelton, Luke Bryan, Carrie Underwood, Miranda Lambert, Eric Church) are using live pitch correction, Martina McBride is obviously not, and I don’t think Faith Hill or Brad Paisley are either. But there are others I think are.
I agree Taylor wasn’t using live pitch correction back in 2009. I’m not as 100% sure about that lately though I think she’s mostly using a mix of backup singers, backing tracks, and prerecorded live vocals to bring her vocals up to the level of mediocre. The only reason I’m not as sure about whether she’s stuck to not using live pitch correction is Red shows she’s obviously opened up to a lot of other pop vocal effects.
I agree with you the problem is Taylor’s let artifice creep into her music just like she’s let artifice creep into her life. Now she’s willingly signed on for photo ops with a member of the boy band One Direction to stir a mutually beneficial PR frenzy about them “dating”.
Let’s face it, even Taylor’s “flaws” are being manufactured for public consumption these days and it’s been a damn shame seeing her become part of the machine.
December 25, 2012 @ 3:46 am
Her relationship with Harry isn’t pr. They dated all through April without a single photograph. When they decided to give it another try, they lasted two months (October and November) without being photographed. Taylor’s level of fame is such that she can’t date someone outside of private homes and hotel rooms without it being reported on by twitter users and gossip sites.
Celebrities don’t go to Cheshire, North England or downmarket ski resorts in Utah to gain publicity. There have been many twitter sightings of them when paparazzi aren’t present. I very much doubt she stayed at his mother’s house for a week to sell a few more copies of her album.
January 10, 2013 @ 8:00 pm
I think its great that you mentioned the layering of vocals. I always challenge my wife when she’s listening to these modern pop records to tell me which one of the multiple voices are Katy Perry’s, Taylor Swift’s, etc. They layer so many vocals on top of each other that auto tune isn’t always really necessary. They have vocals doubling up the melody, and singing the higher and lower harmonies. Who knows who those voices belong to. You hear the same thing with their live tv performances.
I saw those famously bad live taylor swift tv performances and agree that she couldn’t have been using live auto tune. Her notes we’re so far off she would have pushed that tuner to the max and sounded like t-pain.
She probably uses it on the studio vocal without even knowing it. I don’t know her whole story but I doubt she engineers and mixes her own albums. I’m sure the mixing engineer applies it each of the vocals they stack on each other. Then he/she squashes it all together with heavy amounts of compression.
June 8, 2015 @ 10:27 pm
One only had to see her live performance on Saturday Night Live a few years ago to realize she must be using some sort of musical enhancement. If you did not know it was Talylor Swift, recorded it and asked random people if the song they heard was even someone they thought would be a good candidate for American Idol, I think most music conesouers would have replied with a resounding NO. I know people who knew her in Nashville and everyone locally knows she broke into music business due to her daddy’s big MONEY – NOT her talent and is why most pure song writers do NOT like her or believe she is purely talented.
December 3, 2012 @ 1:47 pm
i’m assuming she wouldn’t be able to blatenly rip off Bob Log III’s sound like she’s been doing w/o some kind of vocal enhancement.
December 3, 2012 @ 2:05 pm
Is this…
No, it can’t be, but…
I read this article, and it… wait a minute.
Is this Trigger writing a positive article about Taylor Swift?
Excuse me while I re-group… Be back in a minute…
Okay, what in the wide world of sports is going on here?
December 3, 2012 @ 3:34 pm
I wouldn’t characterize this as a positive article. I would call this a clarifying, or research article. In fact I had been under the assumption that Swift did NOT use Auto-Tune in the studio and I wanted to publicly correct myself.
December 3, 2012 @ 2:57 pm
Either way, her music sucks
December 3, 2012 @ 5:11 pm
I’m sorry if this make me uncool, but Safe & Sound from the Hunger Games soundtrack was phenomenal.
December 3, 2012 @ 3:50 pm
I’m pretty sure that any music you hear on ClearChannel was recorded with at least some auto-tune touch ups. At least anything that was not “live” recorded.
December 3, 2012 @ 3:59 pm
Every country singer with a big production uses some smoke and mirrors for their voices. Even the “good” singers.
Taylor might be an exception and is the most authentic “country” music on the radio today
December 3, 2012 @ 5:13 pm
I like how people that worship Jason Aldean and Luke Bryan crucify Swift for being a ‘fake princess.’
March 2, 2015 @ 9:55 pm
I know one longtime Nashville artist who refers to both as sons of bitches. But this goes all the way back to Garth Brooks, who Waylon Jsnnings described so well…
“Garth Brooks is to Country Music what pantyhose are to finger fuckin.
December 3, 2012 @ 6:00 pm
I dunno.I think you should see her in concert and then decide.I took my kids to see her on the ‘Fearless” tour and with all of the head banging and running around she does,you didn’t hear her breathe one time,not even a gasp.Her voice sounded TOO good,not even a little jiggle to it now and then. My wife who usually falls for this shit even commented on it. I don’t know it it’s full out autotune she is using or what,but the girl is using something.
Compare her to the singer “Pink” (yes,it’s a fair comparison since neither are country) I dunno how much of her you have seen live (or care to) but much like Swift,a lot of running,jumping,dancing,sliding down slides,elevated in the air,hanging upside down,you name it,but the diff is you can hear her BREATHE and gasp and her vocals get thrown off quite a bit at times.
December 3, 2012 @ 6:11 pm
I’ve seen countless videos of her in concert, including possibly hundreds of videos of her on the Fearless tour. In her live shows, Taylor elongates the instrumental pauses in her songs, which allows her a significant amount of breathing time. Furthermore, her vocals were actually quite imperfect in the Fearless tour, and numerous local live show reviewers criticized her for that.
Taylor’s vocals have been improving over time, though, and she did much better on the Speak Now tour than on the Fearless tour.
December 3, 2012 @ 8:31 pm
I don’t give a damn what critics say or what you seen on video,the show I was at..well,I done told you what I saw and heard and stand by it.
December 3, 2012 @ 10:24 pm
And I stand by what I said.
Furthermore, the comparison to Pink is invalid here. Pink does FAR more physical activity during her live performances.
December 13, 2012 @ 3:39 pm
Look Eric AND RWP it doesn’t matter both of you are wrong she does’t use autotune i asked her and her manager and her crew and they all said she doesn’t taylor is a smart dillagent girl who just wants to show people the great voice she has she has a natrurally good voice and both of you are just jealous so quite it! I love taylor and even meet her on a backstage concert and didnt see the equipment now she might have used it earlier but not now. <3 U TAYLOR!
December 3, 2012 @ 6:04 pm
I remember reading that Lefsetz article almost 3 years ago. I disagree that it constitutes evidence for the use of Autotune (or any other tuning software) in the studio. Lefsetz was very vague about exactly what Taylor admitted to. Fixing a mistake in the studio could involve something as simple as recording the messed up part of the song over again and then splicing that newly recorded piece into the original recorded track, in order to save the hassle of having to re-record the entire track.
December 3, 2012 @ 7:10 pm
This is an interesting piece. Believe it or not, I wasn’t even aware that the controversy was still going on (as I’m just not interested enough in Ms. Swift’s work to pay attention).
I guess I feel obligated to comment, to point out that the issue may be more nuanced. This _is_ hearsay, but a Nashville bassist of excellent reputation with whom I’ve worked — definitely not the kind of guy given to spread hyperbole (I’ll keep him anonymous, though) — saw the auto-tuning equipment in action — in person — at a Taylor Swift live show.
Now, to be clear, to my recollection, this was in….. 2008(?). So while I hate to prolong the convolution, taking into consideration the more recent evidence pointed out above, I’d be inclined to argue that Taylor definitely used live auto-tune at some point. How widespread was it? Who knows.
I wouldn’t try to negate anything in this article, but perhaps this means that her live performances have matured a bit since the time leading up to the birth of the controversy? If so — and she’s been able to do away with such an aid — good for her.
Regarding her use of the technology in the studio, frankly, I think we are in an era when that has become the norm. It only makes sense when considering the money that goes into producing a record as high-exposure as any of Taylor Swift’s: the expectation is that fans will be given an over-polished product. But frankly it goes all the way down to indie records recorded in four days in someone’s garage. As I know from experience. 🙂 So I would be very surprised to hear of confirmation that Taylor or any other big names _don’t_ use it in the studio.
Her stuff is still way too boring for me to bother listening, though… Sorry, Taylor. Congratulations on your success, but you don’t need me to buy your records in order to keep going.
December 4, 2012 @ 8:01 pm
Taylor Swift did not have any tours of her own until mid-2009. She spent most of 2008 playing other singers’ shows. Perhaps your friend saw the equipment at, for example, a Rascal Flatts show where Taylor played?
December 4, 2012 @ 9:37 pm
You know, I don’t know the exact nature of the event, but — you’re right — it was _not_ a tour. I have the impression that it was a once-off local thing there in Nashville… I believe I recall the bassist’s mentioning that there were a number of artists performing. My friend was gigging with Miley Cyrus that day, if that gives you an idea of the general scope. 🙂
To be absolutely clear in keeping him anonymous, the bassist I’m talking about: a.) has never played _for_ Taylor Swift, and b.) played with Miley — I believe — _only_ on that one occasion (he was never one of her regular backers). So please — no one make any assumptions. 🙂
December 4, 2012 @ 9:51 pm
If that is the case, I would say that the Autotune equipment was definitely a general part of the set in that event, for everyone performing there.
December 5, 2012 @ 8:52 am
Seriously? You are really trying to have a legtitimate discussion on weather Taylor Swifts “producers” (not Taylor Swift!) uses vocal effects in her recordings and Live?
I am shocked that you would even bother to entertain the notion that she doesn’t. I prescribed to the idea that she “uses her natural voice” just enough to “sound” authentic for a long time. And it is clear she does cause you are accepting that she does. But to suggest that her producers do not use vocal correction? You have heard her sing right? Silent Night at Rockefeller Center? With Stevie Nicks at the Grammys? And this is the person that you think does not use correction where appropriate to create a false reality? I’m alittle surprised by you.
And I think it is unfair to base your entire article on the use of the word “Auto-Tune”.
That is like blowing your nose in a klennex and saying I did not use “Kleenex”.
No you may not have used the brand “Kleenex” but you sure as hell blew your nose into something!!
I agree with all that you said about her marketers and producers using her flaws to create an “authentic” product. But to suggest that they do not clean it up means you have not heard even one measure of We Are Never Ever Getting Back Together. Or it means you have forgotten what the human voice actually sounds like. I am not sure which.
December 7, 2012 @ 12:02 pm
I personally know a sound engineer in the industry and he verified that ABSOLUTELY Taylor Swift uses Auto tune. (he ran her open bands sound) He said he never said much about it because she is “Cute as a Puppy”
And therein lies the ABSOLUTE problem with the music industry and the world in general – It’s ok to cheat as long as you are “Cute as a Puppy”
I’m blessed to have a pleasing face but I have NEVER used Auto-tune in live or recorded performances. I just worked hard to have a very strong voice with very good intonation. The public is so dumbed down they don’t care if it’s real – they want their fantasy, and they certainly don’t give a rat’s ass who cheats to get it!!!
December 19, 2012 @ 5:09 am
Aside from the obvious manipulations from the title track of her recent album, I don’t think she uses autotune. She still sounds off-key to at least a note or two for most of “Red” (except for Begin Again), well listen to “Holy Ground” and experience how her voice remained grating. 😀
January 5, 2013 @ 12:02 am
Lets face it… She is horrible. Her voice is awful, her songs sound the same, and she comes off as fake in interviews. Maybe she should use auto tune so our ears won’t bleed when she screeches. Thanks to marketing and teens who are the ones that actually go out and buy music are the ones behind swifts success just like Britney Spears. Also what kind of psycho tracks down a critic? Many artists get negative reviews but they don’t tracked down the critic&keep harassing them. I get the feeling she’s like that with all of her boyfriends. That’s probably why she can’ keep any of them…she comes off as a needy nut job who needs attention all the time. Dont forget that fake head bon she does or the mouth open “me”.
She’s gone through how many guys in 2 year span? And plz.dont say she didn’t sleep with them because look at the guys she was with, I don’t think they would waste their time with flat chesty if she wasn’t putting out. Needy girls put out.
I hope they find a new gimmick soon so taylor twit can give our ears a break.
March 7, 2013 @ 2:04 am
And I thought I was the only one who couldn’t stomach Taylor Swift. When her tween fans grow up, they will see her for what she is – a shallow, whiney, self-absorbed waif. Sad to say, but her lack of talent and thin-skinned petulance toward any criticism have left her trapped in a career she clearly isn’t enjoying. Stardom that comes before a performer has a true sense of self must be hellish. They’ve packaged her as a music superstar and now she’s left to discover that she really doesn’t have the talent to back it up. Her feeble attempts at stage presence can’t hide her disgust with the whole process. Ever seen her smile as she screeches out one of her boy-hating anthems? Of course not. Her producers have yet to figure out how to auto-tune a smile.
May 2, 2013 @ 6:33 pm
Clearly ur producers forgot their Auto-tune, get a life n stop obsessing over whether she uses auto-tune or not, signs of a closet Swift fan !!
March 14, 2013 @ 8:53 am
“Once And For All, Does Taylor Swift Use Auto-Tune?”
The correct, non-BS answer here is “Yes; at least in recordings, possibly live sometimes, depending on the source.” You could have saved us all a LOT of reading by just stating that in the first paragraph.
I heard it on her CD; she sounds like a robot.
April 2, 2013 @ 8:29 pm
none of you guys have a foucking clue what you’re talking about. I have and use music production software, i have and understand autotune. if you think there is ANYONE on the radio that doesn’t edit the shyt out of every song they produce you are a moronic fool. EVERYTHING on the radio is far from natural. and i would say that 90% of the songs out there use autotune at some point in the song to correct pitch
June 24, 2013 @ 7:59 am
You are a mean man and a lier. T swift rox!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
July 26, 2013 @ 3:36 am
She indeed does not use auto-tune and anyone could tell. It’s kinda obvious when an artist does, actually. And I have to disagree here, that she is average at singing. Just listen to her singing “Want You Back” or “Irreplaceable”, if you despice her own songs so much. She’s pretty amazing. At least definitely not what I would call average.
October 26, 2013 @ 3:18 pm
one word. James Blunt.
March 11, 2014 @ 5:36 pm
I have a friend who ran sound for one of her performances in Florida, and auto tune was used.
July 13, 2016 @ 1:02 pm
not to break the hearts of the fans who want to love on Taylor..and i give her high marks for working at being a product…it’s not an easy life. but guys. I work in the music produciton industry..my bio includes dozens of nationals and I know the high end production folks..yes.. Taylor is a fully processed product..she is one of the least talented products out there.happy for her with her success..that’s fine..but she is completely a product..not a talent.
May 3, 2017 @ 11:24 pm
Bunch of whining maggots. She’s a product?
Too bad you’re a bunch of envious losers.
March 23, 2019 @ 11:26 pm
I have had a career as a professional singer songwriter and musician. Back in 2009 we heard. Taylor sing. Silent. Night completly off key and flat. Numerous times have heard her with no breath.control. however just saw a video of her now 28 singing in just a mic. Quite impressed. In my professional opinion she has greatly improved she hit the notes was in tune. So yes she can sing. And at this point, i would say a pretty good singer. A catchy songwriter and man can she entertain in her concerts!
November 4, 2019 @ 9:18 am
Well I disagree with a lot of crap comments here looks like some idiots with no life gathered here to hate Taylor. proof of your hate “hey I know someone who works at her concert she uses auto tune live or hey I’m in recording industry for these many years with dozens of nationals she is no good crap like that. put the full proof of your credibility before claiming that. first of all using auto tune is not at all bad. people who haven’t listened her songs live don’t know a shit what they talking. she is a damn good singer with great control of voice, nice voice quality, she doesn’t have the range but what makes her special that she can make people feel every emotion that all the so called “talented” artists lack these days. And as far as the hate goes well u can hate her all you want but she gonna have more fans increasing day by day while you just gonna whine about she can’t sing Lol
November 4, 2019 @ 9:43 am
Well from a guy who have been to over 15 concerts by her and seen prob hundreds of performances through television and stuff people saying she uses auto tune live is a complete joke if that was it why she didn’t sounded good in grammies 2010 and numerous other performances well the fact is she is actually pretty good live from voice to holding notes. and using a backing track in pop is completely understandable as she can’t sing all the layers at the same time. people who haven’t seen her good performances and only emphasize on her off day performance saying she can’t sing I have seen dozens of failed Adele performances as well pretty terrible but I don’t comment she can’t sing like a idiot these comments show
December 19, 2020 @ 3:14 am
The only thing I’ve noticed is she only makes mistakes on programs where there’s lots of other stars present. Like perhaps her nerves get to her when she feels like her peers are judging her(imagine that) Anything that’s just her she does awesome. I really feel like this article should be updated, because it’s obvious she’s worked her ass off to become a better singer. With her latest, folklore and evermore, I think she just found the genre she belongs in. It’s entirely possible she was just more meant for folk music. Her live performance of Betty was perfect, and very obviously not altered.
July 26, 2021 @ 8:42 am
OK, so this was article was written ages ago, and things have moved on a LOT since. I will just say that I think a lot of the comments above are so, well, mean, no pun intended. I’m a guy in my 40s, and a long time musician myself, who owns a studio. I’ve only recently discovered Taylor’s music and something really stood out for me, and that is her incredible song writing ability. Music is subjective, but I think she’s really one of the greatest songwriters of all time. THAT is the nucleus of her talent, and anyone who tries to deny that now after all the #1 quality albums she has put out, and in different genres, is just being obtuse. She wrote many of the huge hit electronic pop songs, like Blank Space, on an acoustic guitar or piano. Her ear for hook melodies is outstanding. After watching many live performances of hers (recorded over the years) it is obvious that she has always had a real stage presence and I really look forward to getting the chance to see her some time in the future.
As for the issue of “autotune”. I think a lot of nonsense is spoken about it, and as I own a studio I’ll try and explain. Firstly, auto-tune gear in a live setting is completely different to auto-tune in a studio setting. In a live setting one could use a 19inch rack mount unit like a Tascam TA-1VP. First. the singer’s mic feed is fed to a compressor/feedback eliminator/gate/EQ as a MINIMUM (either in desk or outboard), and ALL singers will do this in a pro live production. This keeps the volume steady, prevents feedback, keeps a nice EQ with the band. Completely standard stuff. Then some FX like reverb or vocoding type stuff could be added, but this will very much depend on the venue and song. If the autotune device is used, one has to select the key of the song, and this will likely be triggered by a MIDI sequencer, or more crudely, the engineer directly selecting the key for the song. Pick the wrong key (say G major instead of C major), and the auto-tuner could correct a slightly off pitch F note to a dissonant F#. IME, you have to be a reasonably on pitch singer for a live auto-tune device to work properly, because if you are more than a quarter tone off (say between a maj3rd and 4th or maj7th to octave) the machine will correct to the WRONG note with disastrous results. I am absolutely convinced that Taylor has rarely used autotune live WHILST performing, as I have seen so many performances of hers where she is just a little bit off on many notes where an autotune machine would easily have corrected them. Now, there MAY have been POST production “tuning” of some of her live performances. For example, the 1989 World Tour film or the Reputation Tour film. Knowing they were making a movie of the show, a naked “dry” feed from the live mixing desk of all the instruments would have been sent to a DAW multitracker. Later, this multitrack recording of the show can be remixed to get the absolute best sound for the movie release. At this point there would be an opportunity to edit Taylors vocals to correct mistakes, either to “cut and splice” (e.g. take an in-tune word from Chorus 1 and paste over the same, but out of tune word, in Chorus 2) or correct the pitch directly. This is quite hard work, and I think the likelihood is that minimal “corrective post surgery” was done on these performances.
It is possible that she has had a pre recorded “live vocal” of her voice mixed in with her performance to thicken the sound, but I’m fairly sure she usually just uses her backing singers for that purpose. It is possible that autotune machines can be used for harmonies, but I’ve never heard Taylor use them for that – after all she has FOUR backing singers – so absolutely no need.
When recording a track in the studio, all the takes go straight into a Digital Audio Workstation (DAW) computer multi-tracker. You can record dozens of takes, and edit/cut/splice/paste easily. Judging by many of her better live performances (check out the Grammy museum performance of “Wildest Dreams”) Taylor can easily sing well enough to nail the correct pitch of the words she’s singing in a studio session, certainly over a number of takes. Any mistakes can be easily edited out by, for example, taking an in tune word from one take to replace the out of tune word in the favoured “main” take. It’s simple, and has been done for decades. It’s called composite editing, and even the very best benefit from it. During the tape era, it was often done at the desk during mix down – Eddie Van Halen’s famous “Eruption” solo is actually a composite edit from 3 separate takes .. but hey, I guess Eddie couldn’t play guitar, right? So IMO Taylor just won’t need auto-tune during studio recording.
As for some of the other stupid and pathetic, bordering on sexist, comments on here about Taylor being “flat chested and needy”, having “too many” boy friends etc., well that has NOTHING whatsoever to do with her musical ability, which is considerable. IMO she has a really beautiful character to her voice, and so it must be a source of frustration to her that she struggled to be consistent in her pitch control in a live setting, but it is obvious that she has massively improved that over the years. On balance I think she is a fantastic artist who writes beautiful songs that are very distinctive and performs them with real feeling and emotion. She rightly deserves all the phenomenal success she has had.