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The main feature of this pedal is pitch correction, but it also includes a reverb effect, delay effect (with tap-tempo), 3 vocal tone settings (EQ), a gain knob, a switch for optional 48v phantom power, guitar input and output (with reverb effect for the guitar's signal), a switch for mixed or individual signal with the microphone and guitar, etc. It's really quite a versatile tool.
I set this up in my home studio space and tried using both the XLR in/out for the microphone and the guitar in/out. I originally had the microphone plugged into a PA, but since the FV01 can also work as a mic preamp, it works perfectly well coming through the guitar amplifier.
The reverb and delay effect are really great and are so easy to adjust to the perfect setting. The vocal tone (middle button) options are normal, warm, and bright. Warm suited me the best.
The settings on the back are simple to adjust, and depending on your setup and how you want to use the pedal, that will help you decide how to utilize these settings.
Now, onto the main effect. The way the pitch correction works for the FV01 is to correct your pitch to the nearest note. So, of you are close to where you should be, you may hardly notice a difference in the output. But if you're way off, you'll hear that "autotune" sound. And if you are so far off, your voice will be corrected to a different pitch than may be desired. This is not any criticism of the pedal. I just state these points to help a user get the best results from the FV01.
I have used this pedal in a live setting and I'm pretty impressed with how well everything works out. It's especially nice for when you cannot hear yourself. I have had issues staying on pitch when I cannot hear myself. But when I created a simulation, the pitch correction worked great.
FV02:
See the attached demo video for my comments.
Both pedals include a power supply, which is really nice. I also tested them with a One-Spot daisy-chained with a couple of other pedals. There was no major noise from the pedals and both are now added to my gigging pedalboard.
