Best Vocal Effects Processors for Live Performance & Beyond

To say that the Boss VE-22 is a vocal effects processor is truly an understatement. The Japanese giants managed to put so many features in a single powerhouse that’s unbelievable. Also, it’s rugged enough to endure the hardships of the road like all Boss pedals.

But that’s not all, this device is a great performance companion with a simple, easy-to-use interface that allows changes on the fly as well as intensive tinkering. It’s also great as an audio interface, and its looper function is perfect to craft songs, practice, and experiment at home.

But let’s get started with the most important part of this pedal, the live shows.

Three footswitches and three retro-illuminated knobs manage 90% of the tinkering. The footswitches toggle between banks, activate effects, handle the looper, and put the unit into bypass mode.

The knobs can modify the parameters of each effect (harmony, effect, and echo) and also turn them on and off.

This is great because you can use footswitches to move between banks and turn on and off the effects within that bank using these knobs. It’s like being in manual mode AND bank mode at the same time.

Don’t worry, they’re big enough to do it with your feet (unless you’re Lebron James or any of his teammates).

It comes with 50 factory presets with all kinds of sounds. What I did to begin my test was move through these and pick the sounds I liked. Once I chose those, I tinkered with them and got some great lush, modulated sounds with delay that were great for laid-back verses.

But guess what? Yes, you can do a whole song with one bank turning on and off the effects as you go. So, disengaging the modulation and keeping the delay for the chorus just required pressing one of the three knobs.

The harmony side is even more interesting because you can choose the key, the interval, and make that into a bank. So, if you have songs in A, G, and E, you can have banks for exactly that in your 99 user presets.

Using the same sounds I had crafted for the live performance, and adding the built-in phantom power and mic preamp, I plugged my condenser and recorded warm, powerful vocals straight into my laptop via a USB Type-C cable.

In this sense, the ability to customize the “Dynamics” button is paramount. You can fine-tune the compressor, noise gate, and de-esser effects found there.

Finally, the looping side of this very capable machine is just as good as the rest. You can create layers after layers using the built-in effects.

I don’t think there’s any limit to what you can do with this updated version of Boss’s revolutionary VE series.

The TC-Helicon VoiceLive Play is still a benchmark today in this rapidly changing market. Yes, while companies are coming up with new updated versions of their pedals (including TC Helicon) the VoiceLive Play still endures as one of the best out there.

I celebrate the fact it comes with a Practice feature that allows you to check your intonation. If you put the time and the effort, it will make you a better singer. That’s not all, because the “Voice Cancel” feature is useful to sing over your favorite songs taking over the role of the main singer.

But did I like this pedal’s sound and features?

To begin the review, let me tell you that my favorite feature is the “Genre” button. You can use it to move through presets arranged under specific categories. This is great to find something close to what you need to and fine-tune it from there.

The feature that’s the most controversial on this unit is the way it picks up the note around you. This is great if you want to harmonize in the key of the song effortlessly. It’s perfect for singer songwriters and quiet stages in small venues. The thing is when you want to harmonize that way with a full band blasting behind you.

Yes, it’s a mess.

That said, the audio quality of the harmonies is outstanding and so are the delays, reverbs, and the rest of the effects, which are plenty. Also, the compressor and EQ work wonders to keep your vocal range intact while you add all the madness you want to the signal.

I found the HIT function super useful. You can just step on it (or activate it from TC’s dedicated microphone anywhere on stage) and bring in an effect momentarily.

I tried singing some high notes and activating it in dramatic moments and it’s confirmed, nothing makes things more epic than a little long-tail delay at the right moment.

Finally, the looping function is another tool that will help you practice and will keep you singing for a while.

This trusted-and-true vocal powerhouse is still among the best in the market for live use, practice, and sound exploration. It’s not as modern or fancy as some others on this list but will get the job done and help you become a better singer.

The Zoom V3 is the perfect tool for singers who play shows sitting rather than standing up in front of the audience. The ability to attach this finger-operated platform to your mic stand helps you keep the stage clean and is also very handy for changes on the fly.

The first thing I have to say after using this multi-effect processor for a while is that having everything ready to go all the time is great. You can add effects as you go without having to create banks or spend time programming this unit.

Another really cool feature is having the delay, reverb, and compression outside the effect zone and being able to dial any of those 3 with your hands at any time regardless of the effect you have on your vocals.

Feature-wise, I also loved the dual version of the pitch correct because it helps you go into an auto-tune frenzy and nail some very modern tones or use it for subtle pitch correction.

Plus, if you know the song’s key, dial it, and you’ll always land on a note that’s in-scale. Chromatic mode, on the other hand, will correct your note matching it to the next correct one.

Speaking of harmonies, you can select what you want using the five buttons on top. This gives you two lower and two higher voices to add to the original. These can be both on one side or a low and a high. You can even modify that on the go and have lower harmonies in verses and that high harmony in the chorus to make people stand up and cheer.

Moreover, this might be the best tabletop vocal effects processor on this list. I just put it right next to my audio interface in my home studio, and it felt great to try many different presets in a single voice take. It helped me get creative and add more dynamics to the vocal performance.

Now the things I didn’t like about this tabletop vocal processor: no XLR output and a single parameter-tweaking knob for all effects.

Honestly, it’s hard to believe this unit only features TRS output. I had to go fetch a guitar cable at the bottom of a drawer to plug it in!

Finally, some effects could use a couple of knobs, the chorus being the best example.

Other than that, it’s a very capable tone machine that can take your singing to the next level, on and off the stage.

I just love it when brands like Roland release an epic series of products pros use all over the world. In that rare universe in which sound enthusiasts still make music with machines and no computers, the AIRA series reigns supreme.

The Roland VT-4 is a voice transformer and it’s just as capable as their new version of the TR-8s or their MC-707 Groovebox.

The key to understanding the VT-4 is to think of it as a product within that range. It’s not made for the faint of heart or for those who want a subtle effect here and there. The sounds packed in this box are drastic, powerful, and, well… weird.

To begin with I love the format and the controls. I mean, having sliders to set the controls is just as good as it gets. I felt I was able to dial in exactly the level I wanted.

What I did to try this thing out was plug it into my looper pedal. I had so much fun doing harmonies and beatboxing with a cool robot on top time just flew by. You can choose the effect and four variations within that effect. For example, the Harmony can give you a fifth above, a third above, a third above and a fourth below, or a third and a fifth above.

You can make those changes by pressing the 1 to 4 buttons at the center.

But what’s really cool about those buttons is that you can also use them to save presets. Yes, if you’ve found a great sound and want to save it just push one of those buttons and hold it until it saves it as a preset.

Believe me, singing a big chorus with happy major chords and the third and fifth above is the closest to happiness a singer can get with a single pedal.

Furthermore, the slider labeled as Reverb can also turn into an echo, a tempo delay, or a dub echo. Imagine the same chorus above with a lush, sweet echo to make your voice even more grandiloquent.

I know what you’re thinking, “this is all really nice man, but… did it get weird?”

Oh yes, as soon as I went for more extreme settings, things went odd. The robot and the vocoder are as alien-like as it gets. Plus, with the slider, you can leave your original voice and bring the alien in and out.

I found the megaphone in the radio setting particularly interesting. It’s great for some spoken word during your band’s psychedelic medley. You can let the keyboard player go wild and keep it cool with the radio voice telling the story.

If you’re into weird sounds and want to push the boundaries of what you can do with your vocals, this is a great device. For something more subtle or traditional, you’d be better off elsewhere.

Sometimes, all you need is a pedal that will get the job done. Ultimate simplicity. This pedal is that, a great solution in a small box.

But let’s rewind a bit, because there’s a lot I can tell you about this unit. To begin with, it can accommodate an instrument and a vocal. Quarter-inch cable for the instrument on the sides and XLR input and output on top of the pedal complete with a ground lift, phantom power, and a ground-lift switch for vocals.

The guitar line has no other tone-shaping capabilities than a little reverb, but the vocals can sound huge and epic with very little effort. Yes, it would be great to have more possibilities for the instrument but remember, minimalism is king in this pedal’s design.

The vocals can be fine-tuned with two different EQ curves, for bright or warm results. The middle LED button turns red for warmth and blue for brightness. You can also turn it off by pressing it until it goes colorless.

Once you dial that, you can also add some delay, some reverb, and some vocal correction.

I found the delays to be very usable, you have three types: tape, analog, and digital. As you turn the knob you go from minimum to maximum before going to the next delay kind.

The same happens with the reverb, you have room, hall, and plate. If you press and hold the ON/OFF button, you’ll access the hidden setting and you’ll be able to modify the guitar’s reverb.

Mixing a healthy dose of analog delay and some room reverb gives you the epic tone you need to push loud, proud, and thunderous lead vocals forward in a tight band mix. I also loved the slapback mixing some hall reverb and tape delay.

The correction knob allows everything from a subtle, barely noticeable correction to something more extreme and modern. I loved it full on with some delay to get that trap/Latin thing going and also at 11 o’clock for some subtle correction here and there.

Finally, I plugged it straight into my audio interface and recorded some vocals with it. The result was polished, powerful, and well-balanced; the built-in preamp works great.

For those in search for an affordable, easy-to-use solution, the FLAMMA FV-01 is a must-try-before-you-buy kind of specimen.