YoGen Vocoder is sound effect software that impresses human voice upon any musical sounds. The results are robotic, alien, funny, or strange voices that you can create from normal human voices.Turn your computer into ultimately fun and easy to use voice changer, instrumental vocoder, etc. Listen to a Podcast by impressing it upon your favorite musical sounds.

REAPER converts your computer into the full power of any top-of-the-line recording studio.
Minus, of course, a room full of shockingly expensive converters, microphones, amplifiers, and, well, talent.
If you are a top-of-the-line recording studio interested in REAPER, this part of the discussion has probably insulted your intelligence.
So we`ll just say that unlike some other DAWs, REAPER will support almost any existing audio interface.