Audio processing and audio distortion

Cubase
1

Hello Cubase users
Is anyone able to advise me how much distortion is introduced by

  • audio transposition
  • audio time-stretching
    Can the amount of distortion be quantified? And do both processes produce the same level of distortion?
    Personally, Sometimes I think I can hear distortion. And sometimes I can’t.
    I’m working with choral music, so I want to avoid distortion as much as possible.
    Thanks for any advice.
2

this is not possible…
the introduced distortion is highly dependent on the signal, the algorithm used and the amount of change/correction applied.

3

Thanks, then.
So does no-one know if, say, time-stretching produces more distortion that transposition?

4

How should we know it? It depends on the material and the algorithm used…

and btw time stretching and pitch shifting use the same basic techniques…

5

Thanks, Steffen.