Thanks for the tip Robh. I'm going to try some hardware stuff but right now the free trial is too tempting not to try - no iLok required for the demo.

Yesterday I started the 10 day free trial of Antares Harmony Engine Evo. The jury is still out but I'm having a lot of fun exploring. I tried the duet setting on a vocal I already had recorded in RB and set my duet partner for an octave below then adjusted "his" throat and the sound was pretty cool and not overly robotic.

In an uptempo track using more harmony voices the robotica was more apparent. grin. I dl'd the pdf manual. Nine days to go it'll be fun to see how human I can get it to sound. I haven't tried the midi controls yet. The choir is nice.

It works as a VST in RB just fine as an insert haven't tried any fancy routing because I don't know how yet.