Last Updated on June 24, 2021.
What better way to add some embellishments to your songs than with an orchestral plugin? Even better if its free, right?
Orchestral samples, and samples in general, have come a long way.
- 7 Best Free Virtual Instruments – VST/AU Plugins for Mac & PC Virtual instruments are software emulations of traditional instruments or hardware electronic musical instruments. There is a staggering range of virtual instruments available nowadays, covering multi-timbral rompler modules to dedicated emulations of guitars, basses, drums.
- Auburn Sounds – Graillon 2. If you’re a producer looking for a free autotune plugin for your.
They were practically unusable back in the day, but now, even though you can hear the difference between a sample software and the real deal, they sound astoundingly similar.
I love finding free software that actually works, so in this post I will go into each of the ones I found and tried, this way you won’t have to do any of the research and try the ones that sucked, like I did!
Get the 247 best free VST plugins ever made. From synth VSTs and drum VSTs to VST effects, this huge list has only the best of the best plugins.
All of the download links are included!
The Best Orchestral Plugins are:
Let’s get straight into each individual orchestral sample library!
Layers by Orchestral Tools
Layers is an ultra realistic orchestral sample library that features a full orchestra, Brass-, Woodwinds-, and Strings sections.
You can choose between a couple different mic positions and it also features different articulations; different chord types, staccato and sustain unison, and more.
In total, the sample pack is about 17GB and runs on Windows 10 and Mac OS.
Lastly, Layers works with Orchestral Tools’ SINE Player.
You can download Layers here.
Total Composure Orchestra (Windows, Mac, Linux)
Total Composure Orchestra is a full orchestral sample library created using only samples in the public domain.
Total Composure is the first to offer such a library exclusively for the Kontakt format; making use of Kontakt’s scripting capabilities to greatly enhance the playability, realism, and functionality of these public domain samples.
This is a fantastic plugin, it comes with a huge array of instruments from pianos, to brass instruments, strings and percussion.
One bad thing about this plugin is that it runs both on Kontakt Player, which is free, and the full version of Kontakt, but on Kontakt player you can only use the samples for about 30 min before it stops working.
If you want to be able to use them to their fullest extent, you will need to purchase Kontakt.
You can download Total Composure Orchestra here.
Related: List of the best Choir VST Plugins available.
Spitfire LABS (Windows, Mac)
I mentioned Spitfire in a couple of my posts simply because they have some of my top recommendations as far as free plugins go.
LABS is basically a collection of free VST and AU plugins that not only sound fantastic, but that is also being updated consistently, with new plugins being added over time.
Here you will find great-sounding samples of any orchestral instrument you can think of.
You can download LABS here.
The Free Orchestra by Project Sam
Project Sam is behind Symphobia, which is one of the best-rated libraries for film scoring, video games and TV, and they created the Free Orchestra library which contains bits and pieces of all of their paid products.
What struck me the most about this free library is how great it sounds as soon as you load it up; there is little to no tweaking required.
Now, it runs on KONTAKT (6.2. or higher), but luckily it works in the free version which can be beneficial to you if you’re interested in using KONTAKT but don’t want to purchase the premium version just yet.
Parameters such as envelope controls, effects, octaver, and reverse make this library very versatile to use.
All in all, if you’re a beginner tipping their toes into the whole orchestral world, this entry level library could just be what you need.
You can download the Free Orchestra here.
DSK Overture Orchestra (Windows)
DSK Overture is a full orchestral sample VST plugin.
It gives you the ability to choose between 40 different instruments and play 4 of those instruments in the same instance, through MIDI.
The included instruments are; Acoustic Piano, Harpsichord, Bassoon, Celesta, Glockenspiel, Vibes, Harp, Flute, Piccolo, English Horns, Oboe, Clarinet, French Horn, Trumpet, Church Organ, Trombone, Tuba, Cello, Contra Bass, Viola, Violin, Orchestra Drum Kit, Full Sections.
Honestly, what makes this plugin great is the variety of instruments, since there is no shortage of them, plus they all sound pretty damn good!
You can download DSK Overture here.
BBC Symphony Orchestra Discover by Spitfire Audio
Here’s another great addition by Spitfire.
The BBC Symphonic Orchestra Discover actually sells for $49, but you can fill out a form and they will send it to you after 14 days for completely free.
This library is clearly aimed at beginners since it is very simple to use and straight-forward, plus it already comes premixed into one mix signal which gives you less control over it, but makes things easier if you’re just starting out.
It features a total of 33 instruments and 47 techniques, and thanks to Spitfire’s new mode switching technology, you can share and collaborate with fellow composers, regardless of which edition they own.
You can download the BBC Symphonic Orchestra here.
If you’re also Interested in finding the best sounding Free Drum Vst Plugins, then read this article I wrote about the ones I think are absolutely fantastic.
One Track Orchestra (Windows)
One Track orchestra is primarily a sketching tool, meant to be used for songwriting and recording demos and aimed mostly at beginners and songwriters who need a simple tool to create and record music.
Therefore, the sound quality and usability aren’t the best ones out there.
The plugin was created using samples from VSCO Community Edition and assembled with Maize Sampler.
It is available as 32-bit & 64-bit VST plugin for Windows.
You can download One Track Orchestra Here.
Related: I love free plugins, so I put together a list of the best Free Synth VST Plugins out there which you can check out here,
Sonatina Symphonic Orchestra (Windows)
The Sonatina Symphonic Orchestra Module contains the full SSO by Mattias Westlund, in one simple VST plugin (32 & 64bit)
The SSO samples are stereo, 16 bit, 44kHz.
While it’s not the most professional Orchestral Sample Plugin out there, it will certainly provide the building blocks for creating some astounding virtual orchestra sounds.
Melodic instruments and chromatic percussion are sampled in minor 3rds and all samples have varying amounts of stage ambience, depending on their front-to-back placement.
SSO is the one plugin on this list that provides the highest number of instruments.
You get loads of String instruments, Brass instruments, Woodwind instruments, Keys and Choirs, Chromatic Percussion and Regular Percussion.
You can download it here.
DSK Virtuoso (Windows)
DSK Virtuoso allows you to play a combination of 6 layer instruments, or to play a composition up to 6 different parts, through the MIDI channels selectors.
The included instruments are;
Acoustic Piano, Harpsichord, Church Organ, Celesta, Glockenspiel, Vibes, Harp, Flute, Piccolo, English Horns, Oboe, Clarinet, Bassoon, French Horn, Trumpet, Trombone, Tuba,
Cello, ContraBass, Viola, Violin, Orchestra Drum Kit, and more.
You can download DKS Virtuoso here.
You may also be interested in trying out some Free Bass Amp VST Plugins which should help you achieve a better sounding mix!
VSCO2 – Chamber Orchestra 2 (Windows, Mac)
The Community Edition, which is the free edition of these samples, comes with a total of 19 instruments, ranging from Woodwinds to Brass, Keys, Mallets, Strings and Percussion.
Decades of work have gone into creating these samples using nothing but the best equipment to capture them.
You can download the VSCO2 library here.
Palette – Primary Colors (Windows, Mac)
Pallete is a free KONTAKT instrument that offers a total of 1.3GB of samples, featuring strings, woodwinds and brass ensembles.
Contrary to some other VSTs on this list, Pallete doesn’t offer multiple microphone positions and only features a limited set of articulations, but it does offer 3 dynamic layers and up to 7 round robins with adjustable behavior.
You can control the dynamics, expression, vibrato and tremolo-flutter with a couple different sliders and adjust the volume for each section (strings, brass and winds).
The only con to this library is that the instruments can’t be loaded separately since all the patches are loaded at once when you open it in Kontakt.
Lastly, there’s couple different a pro versions available on their site (Orchestral FX, Runs & Arps, Symphonic Sketchpad, and others) which cost about $199 each.
You can download Palette here.
Honorable Mentions
Vienna Big Bang Orchestra
I tried so hard to include this one in the actual list and not in the “honorable mentions” section, but the install process is so annoying and they make you jump through so many hoops that I just couldn’t place it any higher on this list.
The orchestra itself is great; It sounds fantastic, offers a total of 1.5GB in samples, you can choose between multiple microphone positions, and more.
However, you will need to go through the entire purchasing process, even though you’re not paying a thing, to get a serial number. Until now, not too bad.
But then they require you to install an eLicenser software and to purchase a “Vienna Key”, which is a USB device that holds all your product keys and that costs about $15, and without it you can’t install the software.
So, while it may be a great “Free” product, only get it if you’re willing to go through all of that.
Check out the Big Bang Orchestra here.
Spitfire Audio LABS
Even though I think that all free samples provided by Spitfire Audio in their LABS section are absolutely astounding, they don’t really offer a dedicated orchestral VST here but rather multiple different instruments, such as drums, harps, pianos, brass, guitars, strings, choirs, and more.
You can use all of these different VSTs to create full orchestral sounds, but you’ll need to work on every instrument on its own.
Having said that, all the instruments found on the LABS section of the website could easily be premium products since they sound absolutely phenomenal, and I find it fascinating that they are giving them away for free, so absolutely give them a try!
You can download LABS here.
Ample Guitar M Lite II
Ample Guitar M Lite II is a free acoustic guitar simulation software that has a very realistic feel to it, even when compared to more expensive pieces of software and it’s by far my favorite acoustic guitar VST.
It sounds absolutely fantastic while also giving you the option to add some effects. You can even double the guitar with the simple press of a button, which will add width and body to the sound.
You can simply download some MIDI files and play them using Guitar M Lite II, and while you may need to tweak a couple settings to get it to sound more realistic, it’s definitely far easier to achieve than with most other acoustic guitar simulation software.
I think that everyone should download it. Electric guitar plugins are extremely common, but not acoustic ones and like I said, they tend to sound terrible.
You can download Ample Guitar M Lite here.
Learn how to Produce music
If you want to learn how to produce music at home the right way and without making too many mistakes, then I’d recommend that you read these posts;
Conclusion
The reason I like these kinds of plugins so much is because you can create complete song just by using virtual instruments.
You will need a good MIDI controller to do this properly and fast, even though you can manually add in every note in your DAW.
I hope this information was useful!
See you on the next one.
Last Updated on September 7, 2021.
From slight pitch correction to some cool robotic sounds, pitchcorrection software can be extremely useful.
T-Pain made this effect very popular, but it’s also beenused by a lot of other artists such as Daft Punk, the Black Eyed Peas, andmore.
Auto-Tune can be used to achieve a lot of different effectsand you don’t need to spend hundreds of dollars on the Pro version of theSoftware since there are a lot of free ones available.
In this post I’ll go over the best free pitch correction plugins available for Windows, Mac and even Linux.
Now, out of all the plugins on this list, I think that the best ones are these five;
Here’s a table with the best free auto-tune plugins (I only included 5 in the table, but there’s more on the list).
Let’s get started!
Related: I also wrote an Article about the best Pitch-correction/auto-tune plugins in general, not just free ones.
1. GSnap – (Windows)
GSnap gives you the ability to control the notes that it snaps to through MIDI.
This means that if you need to correct a singer’s performance through pitch correction you can play the notes on a MIDI keyboard and feed these notes into the plugin, and GSnap will now use those notes as a guide and will correct the pitch to whatever notes are in the MIDI file.
This will also prevent unwanted snapping to other notes.
If you don’t want to control the plugin through MIDI, then you can set any scale you’d like or control it by turning certain notes on or off.
The interfaceis fairly easy to use and understand:
On the left you can see the original notes and the ones it’s snapping to, which will not only give you a visual representation of what’s going on, but also allow you to fine tune everything more easily.
It has a 12-knob control system which is divided in thefollowing way;
- Detection: Min Freq, Max Freq, Gate, and Speed knobs.
- Correction: Threshold, Amount, Attack, and Release knobs.
- MIDI: Pitch bend, Vibrato, Vib Speed, and Calibrate knobs.
All of these knobs let you edit everything with precision and accuracy.
It also features a gate that gives you the ability to select on what parts the plugin actually affects the sound, like for example; If you only want to affect the louder parts, or more importantly, if you don’t want the plugin to trigger on any unwanted noises that might be part of the track and just the vocals.
Even though G-Snap may be a fantastic freeware vocal tuning plugin, you may want to consider the famous Auto-Tune by Antares. It offers a couple different versions that sells at very different price points as well. I’d recommend starting with Auto-Tune Access.
You can download it here.
Are you looking for a new DAW? Here’s a list of the best DAWs currently available!
2. Graillon2 – (Win/Mac)
The first thing you will notice when looking at Graillon2 is the way its interface is designed;
It has this vintage vibe to it which is just fantastic to look at, plus it is designed in such a way that makes it easy for you to navigate through the settings.
It is a very visual plugin since it has a display where youcan see the notes that are being played as well as where Grallion2 issnapping/correcting them to.
This plugin is specifically designed for vocals and thepitch shifting can be smoothly adjusted from minus 12 to plus 12 semitones.
One cool feature is the “preserve formants” knob which, intheory, helps you preserve the tone and characteristics of the vocal trackwhile shifting the pitch.
In some cases, this ends up creating some issues, so makesure to play around with these settings to see what happens.
The speed knob is also pretty useful since it helps the notes “stick” a little longer, reducing the pitch correction jumps.
Grallion2 also allows you to choose how fast or slow the snapping occurs, which is done by adjusting the “smooth” knob.
By adjusting the controls on the “bitcrusher” section, you should be able to achieve some interesting growl sounds.
The typical controls such as dry/wet, low-cut and outputlevel adjustment are also included.
Lastly, the Pitch Correction module can be drivenby MIDI, just like with GSnap.
If you like the vintage look on this plugin and you need agood all-rounder, then Graillon2 may be the one for you.
There is one important note though: It’s notcompletely free but rather “freemium”.
Basically, you won’t get its full functionality unless youbuy it.
With the free edition you only get the “pitch shifting” and“pitch correction” features.
If you want the full version then it will set you back about $25, or you may also consider Melodyne 5 Essential.
You can download it here.
If you’re looking for the best free VST plugins in the world, I have a list of 225 of them here.
3. MAutoPitch – (Win/Mac)
Melda Productions is a renowned audio plugin company that created other free plugins such as the MRing Modulator, the MFlanger, MTremolo, and more.
You can find all these plugins in another post I wrote about the best Free Modulation Plugins, should you be interested.
Even Deadmau5, who is a very famous electronic musician, uses these plugins, which is a clear testament to their quality.
MAutoPitch comes with the typical pitch correction features such as depth, detune and speed.
However, it also includes some additional controls such as a dry/wet knob, a width knob which will allow you to control the stereo spread, and the keep- and shift-formants knobs.
How does Formant Shifting affect the sound?
Formant Shifting allows you to make the sound deeper or higher, or in other words, “more masculine or feminine”.
However, keep in mind that this can alter the pitch if yougo too far.
Additionally, MAutoPitch allows you to choose between different scales such as; Chromatic, major, minor, and pentatonic, and this lets you setup the pitch-correction in no time, or at least use it as a jumping-off point.
It also provides you with a visual display of what notes arebeing detected by the plugin.
Even though it does have some amazing features and isdefinitely worth using, there are some cons to it:
First of all, the free version comes with a banner on the bottom that is a bit annoying to look at.
Also, the pitch correction isn’t the best overall since there’s some unintentional snapping to unwanted notes occurring at times, even after you set the notes and the scales perfectly and all the settings are in place.
Lastly, MAutoPitch also includes a limiter, which should help you keep your sound from clipping.
All in all, it’s a great free plugin that could make a great addition to your arsenal!
You can download it here.
Looking for Vocoder VSTs? Here’s a post I wrote about the best ones.
4. KeroVee – (Windows)
KeroVee was created back in 2010 by the Japanese company“g200kg”.
Best Free Vst Plugins For Mac
The whole point behind this software was to create a precise vocal pitch adjustment plugin without focusing too much on the other effects that can be achieved; like a robotic sound.
This is why KeroVee is an excellent alternative for anyonewho just wants to apply some subtle and precise adjustments to their vocaltracks.
Similar to Gsnap and Graillon2, you have the option to routethe MIDI notes to KeroVee.
This will allow the plugin to use these notes as a guide to properly snap the notes from the singer’s performance to where they should be.
Using MIDI to guide the plugin is great, however this might take some time to set up, and this is why KeroVee also allows you to select the notes you want it to correct to-, or not, through a simple clickable interface;
Enable the ones you want it to snap to or disable the ones you don’t want it to snap to, and that’s it!
KeroVee shares a lot of parameters with most other autotune plugins, however there is one that’s unique to it which is the “nuance” control;
The “nuance” knob lets you select whether ornot to keep the vibrato of the original sound, making the vocals sound morenatural while still being autotuned.
Note: If set to max, even the smallest vibrato willtrigger the correction, resulting in a mechanical sound.
There are loads of other typical controls and features available with this plugin like Tunespeed, formant shifting, panning, volume, etc.
Like I mentioned earlier, KeroVee is excellent for fine tuning the vocal track and doesn’t really emphasize too much on achieving robotic sounds.
You can download it here.
Looking for free guitar VST plugins? Here are the 15 best ones.
5. X42 Auto-Tune – (Win/Mac/Linux)
X42 Auto-Tune is intended to correct the pitch of a voice singing slightly out of tune.
It works by resampling and looping the signal and does not include formant correction, which means that it should be used to correct small errors only and not really to transpose a song or to correct big mistakes.
Even though it is a very simple pitch-correction plugin, itactually does a decent job at what it’s supposed to do.
The interface is very easy to navigate, it can be controlled via MIDI, or you can input a fixed number of notes in any key and the plugin will correct to the notes on that key.
It comes with a “Bias” knob that controls how long the original note lasts before it corrects it to either the ones you selected from the scale or the ones input through MIDI.
This allows it to go off-tune a little making the performance feel more realistic and natural.
Similar to the “Bias” control you also have the option to use the “Offset” feature that gives you the option to adjust how far from the note the singer is allowed to go before it gets corrected.
Both of these parameters are designed to keep the vocalrecording sounding more human and natural.
If you’re looking for a very simple and easy to usepitch-correction tool that focuses mainly on subtle changes, then X42 Auto-Tunemight be a great alternative for you.
You can download it here.
Looking for free Piano VSTs? Here’s a post I wrote about the best ones.
6. Auto-Tune Evo – (Windows)
Auto-Tune Evo by Antares Audio Technology has been released in February of 2018 and has been rising in popularity ever since then.
It’s got a great set of features such as pitch correction inreal time, for live performances, vibrato controls and Humanize.
Auto-Tune Evo was created, like most auto tune plugins, with vocals in mind; However, it can also be used with most monophonic instruments as well; e.g. bass.
It has two basic modes; Automatic and Graphical.
With the Automatic Mode you give Auto-Tune some basic information about the track and that’s it, it will do the rest or its own.
With the Graphical Mode you can go through the entiretrack manually and tell Auto-Tune exactly where it needs to apply somecorrection and how much.
While using the Graphical Mode might be a lot more work and definitely not for everyone, in my experience I’ve found that you get a much more transparent and realistic sound, and the common artifacts associated with tuning tend to be less noticeable.
Automatic Mode is excellent if you’re going for that T-Painstyle of sound, or if you just want to quickly adjust a track.
It really comes down to what sound you’re going for and how much time and energy you’re willing to invest into it.
Regardless of what mode you’re going to be using, the first thing you’ll need to do is set up the “Input Type”, like Soprano, Alto/Tenor, Low Male, Instrument and Bass Instrument.
Another feature is the Key and scaleselection where you can tell Auto-Tune the precise key of the song.
Lastly, the Formants control will keep as much of the original characteristics of the vocals if switched on.
If you want a versatile and good-sounding plugin that is good for both beginners and advanced producers, then definitely give it a try.
You can download it here.
Best Free Vsts For Mac
Looking for free Drum VST plugins? Here are the best ones.
7. AutoTalent – (Linux)
If you’re a Linux user, then this one’s definitely for you!
Autotalent is an open-source and real-time pitch correction plugin that allows users to specify the notes that the singer should be hitting, and then AutoTalent will do the rest.
Not only can it correct the pitch but it can also be used to create effects those T-Pain effects.
Now, don’t be fooled by the simple- and stripped-down look of the interface, since it’s actually a very capable plugin, and you can use it for some light pitch correction or to achieve a full robotic auto-tune.
It includes all of the typical parameters that other auto-tune plugins have, such as; Formant shifting, selecting a scale or notes for the plugin to use or to exclude, and more.
However, it provides one feature that most auto-tune plugins don’t; The Vibrato section.
This section can help you add some vibrato to the vocals to give it a more natural sound, and of course you can go overboard and use it as an effect.
All in all, Autotalent is an extremely useful and fully-featured auto-tune plugin, plus it’s for Linux users who don’t have that many alternatives when it comes to plugins and music production software.
You can download it here.
8. Voloco – (Windows, Mac)
If you’re looking for an Auto-Tuner that is capable of slight- and in-depth correction, then Voloco might not be the right one for you.
It’s designed to be used as a creative tool, which is why you only get access to 6 presets that you can’t even edit, and that’s it.
Each of these presets affects the audio in a slightly different way. However, they are all optimized to achieve the “T-Pain” auto-tuned vocal effect.
Naturally, since it doesn’t feature any more controls than changing the presets, setting the Key and adjusting how much correction you want, Voloco is extremely easy to use.
The interface is extremely clean and easy to understand which, if you’re new to auto-tuners, is great news.
Voloco is a fun plugin to have, especially for coming up with new ideas, but it’s not the most in-depth auto-tuner.
Still, I find it easy to recommend to beginners!
Lastly, you can also download a mobile version for your phone that you can use to sing over other songs you have on your device and Voloco will adjust your performance to the song’s key.
You can download it here.
9. BeatLab Autotuna (Ableton Only)
BeatLab Autotuna is only compatible with Ableton, which is a shame since it’s a great vocal processing tool, and it’s also the reason why I put it last on this list.
The original Autotuna was a lot harder to use since it made you select the notes that you wanted it to snap to as well as de-select the ones that you didn’t want it to snap to, or you were able to import a scale.
With the BeatLab version of Autotuna you can select different already built-in scales and patterns, how much or how hard it should be correcting the sound, and more.
Other features include: a dry/wet control, amount control & correction settings.
The only drawback to Autotuna, aside from only working on Ableton, is that it’s a fairly basic pitch correction tool that won’t let you do too much in-depth tweaking. If you require something more powerful, then Graillon2 would be a much better alternative.
BeatLab’s autotune comes as part of a free Max4Live pack, which features pitch & time machines that comes with a range of other plugins that you can use creatively for sound design.
You can download Autotuna here.
10. Soundtrap (Online DAW; Browser only)
Sountrap is a free to use platform that works just like any regular DAW with a couple minor limitations, but this is to be expected since it’s browser based.
Soundtrap offers plenty recording and mixing features and of course, Auto-Tune is one of them (a very limited version).
You can choose how Heavy or Light the effect should be (Heavy sounds more robotic), and then you can select the notes Auto-Tune should snap to by clicking on them. Otherwise, all the major and minor scales can also be selected.
I have to say that the lighter settings do work quite well, but when I tried the “Heavy” one on my vocals, even though it sounded robotic and pretty usable, there were some annoying artifacts present.
How to use Sountrap’s Auto-Tune:
- Hover your mouse over the track you want to tune.
- Click on Edit and select Auto-Tune.
- Choose all the parameters and click on save.
After this it will process the track which will take a couple seconds and you will be able to hear how the effect sounds. If you don’t like it then click on cancel to further adjust it, and if you like it simply click on “Use it”.
Top 3 Free Autotune Plugins
Out of all the Auto-Tune plugins on this list I’d have tosay that Graillon2, GSnap and Auto-Tune Evo are my toprecommendations.
They offer a lot of features, they sound great, and they give you more control over the track itself than most other plugins.
Budget yet premium Alternatives
While the plugins I will list now aren’t free, they also won’t cost you an arm and a leg.
If you have some money to spend and want a higher quality pitch-correction tool, then these are my recommendations:
- Auto-Tune Access: The more affordable and stripped-down version of the famous Antares Auto-Tune.
- Melodyne 5 Essential: This is the most basic version of Melodyne, but it should be enough for most people.
- iZotope Nectar 3: While more advanced, it’s definitely one of the best alternatives.
Learn how to use AutoTune properly
Even though there’s nothing wrong with learning how to use this kind of software all on your own, learning from someone can be quite useful as well.
Here’s a course about vocal music production where they also teach you how to use Autotune, Vocoders, etc.
Conclusion
Quality software doesn’t necessarily need to come at apremium price…
All of the plugins on this list are more than capable of delivering excellent pitch-correction while still offering other features, and all of this completely for free…
Since they are free, I’d recommend you try them all out andchoose the one that suits your needs the most.
I hope this information was useful!
Have a great day!
Frequently Asked Questions
Is autotune Evo free?
The Auto-Tune Evo VST demo is available to all software users as a free download with potential restrictions compared with the full version.
Best Free Vst Compressor
Can autotune be used live?
Yes, with the progression of vocal technology, companies like TC Helicon, ART and Boss have developed several Live Autotune & Pitch Correction Vocal Processors that work essentially like foot-pedals used on stage to turn on/off autotune.
Does Auto Tune change your voice?
Best Free Vst Plug-ins For Mac
Autotune corrects the pitch of your voice, essentially making you sound better and on key.