Adjust voice audio to create other realistic voices (e.g., little girl, grandfather, man, woman)

[monicahong]

I want to manipulate my voice (an adult woman in her mid-30s) to sound like a little girl, little boy, grandfather, grandmother, man, woman, etc., and no matter how much I play around with the Semi-tones and Cents (under Effects > Time and Pitch > Pitch Shifter > Pitch Transpose: Semi-tones and Cents) or Stretch, Pitch Shift or Pitch Coherence (under Effects > Time and Pitch > Stretch and Pitch (process) ), it sounds robotic and unrealistic. Are there any tried-and-true Semi-tones and Cents coordinates and/or Stretch, Pitch Shift, Pitch Coherence coordinates that will manipulate audio to sound like a variety of people in a realistic way?

[SteveG_AudioMasters_]

You will definitely get better results with Stretch and Pitch, although...

The one thing that's important to do is take the check out of Lock Stretch and Pitch, and then below don't alter stretch, and just concentrate on pitch. Also in advanced settings set it to preserve speech characteristics and use the Solo Instrument or Voice setting. But even that won't entirely work, as you can't take away the effect of having a different vocal cavity which will alter the resonance of any voice, and on top of that, every voice is different. The fundamental problem here though is that human ears are very well attuned to what human voices sound like, so it's easy to spot a con/manipulation at quite a distance. I've never managed a gender-change on a voice; that never seems to work - I suspect that there are other differences (vocal chord, chest cavity) which over-ride anything you think you can do, pretty successfully - even EQing the results doesn't fix it.

And it definitely works better on some voices than others. So I'm afraid there are no universally good settings - you've just got to experiment.