Quantizing MIDI is a piece of cake and every program/DAW that supports MIDI does it. But say I'm working with raw audio instead, say maybe a guitar line I just recorded, and the performer's timing is a bit off and doesn't match the click as well as it should. If I want to line it up with the tools I have now, I open up the guitar audio and click track in Audacity and manually delete or copy the waveform so it lines up. There has to be a better way.
So what tools could I use to "quantize" recorded audio? (I use Cubase SX 5, but I'm open to trying other tools if needed.)
(Note that I'm not asking whether or not I should do this instead of re-recording or anything else; I just want to know if it is possible and how I could do it.)