New Waves plugin promises to create instant eight-part harmonies from a single voice
> Waves are promising “instant vocal harmonies” from their new Harmony plugin, which can generate up to eight additional voices when given just one. You can adjust the pitch, formant, panning, delay, filtering and modulation (via drag-and-drop) for each voice individually, so it’s possible to have both ‘male’ and ‘female’ backup simultaneously.