different vocal pitch while live?

in this live performance, how does he sing live while having a pitched up signal playing at the same time? (fast foward to 2:09 to see what Im talking about)

is he re-routing cables and just hitting the bypass button when he's done using the effect or what? that's all i can think of, but maybe someone here knows for sure. peace!!

Its pretty normal to use realtime pitch shift. Back in the days the Eventide Harmonizer was very popular for this. Also the Digitech Vocalist series. There are also GTR stompboxes to do this (for example: octaver pedal).
MultiEffect units sometimes also had this FX (even my old Yamaha Promix Mixer had this effect. Sure on this unit it was only for simple tasks)

On a DAW this FX can easily be routed via a send on the inputchannel to an FX channel with the harmonizer/pitch change FX on it.

peace

ah, thanks for the info. somehow i've never heard of this and when i saw this video, it sparked intrigue. using what you told me, i've got a pretty good place to start finding out more.

appreciate it!

If you trying to recreate this, you could also just use your DAW as an FX-Unit. Just route the input from your interface, which is connected to the mic to a channel in your DAW, use an pitch shift effect as an insert-effect and route the signal back out of your interface. This way you can try this before you have to buy an hardware pitchshifter.

Probably impossible to tell exactly what effect unit, or plugin, is being used, without seeing it.

There are many different effects units/pedals, and plugins, that could be used for harmonies like that.

These are a couple of the more recent standalone units that include a harmonizer...