I read:
I think acid and live use some combination of techniques to stretch the material cleanly without making it sound "chunky" and still preserving the transients in the audio. that's a little beyond my grasp at this point, anyone have tips?
Stephan M. Bernsee has a few articles about this topic on his site -> http://dspdimension.com/start.html also check out his clearscale project, donate and wait ;)
regards,
x