Whether you're an experienced vocal arranger, a songwriter looking for that perfect backup vocal, a composer experimenting with unique vocal effects, Harmony Engine Evo gives you entirely new ways to create the harmony parts you hear in your head. Harmony Engine Evo incorporates Antares` groundbreaking Evoâ„¢ Voice Processing Technology for faster, more accurate pitch detection, smoother, artifact-free pitch shifting, seamless, natural-sounding (if you want it to be) throat modeling. with 5 channels of Antares unique CHOIR Vocal Multiplier, you can create huge vocal ensembles out of a single vocal line.