Hi again! I'm trying to help a friend who's an amateur lead vocalist, with a little recording and occasional live performance.

I'm not necessarily interested in generating a "barbershop quartet" harmony, or making her voice sound like a robot. I'm assuming the most useful functions for lead vocals would be subtle pitch correction, dynamic compression, de-esser, etc. I'm not a vocalist myself so I don't even know what the most common issues are.

Which of the following setups would be the most helpful:
(1) Korg Pa1XPro with optional voice modelling board
(2) Korg Pa3X with its built-in tools
(3) TC Helicon Voice Live 2 with chords coming from an arranger or MIDI file*
(4) Other arrangers & solutions??

*Regarding an external vocal processor like the VoiceLive: In your experience do they work as well as an integrated solution such as what's built into the Pa3X? I'm assuming these devices are connected via MIDI. Can it detect notes & chords in real time, does it have issues with feedback, etc.?

Really counting on your experience here. Thanks, sincerely,
Ted