I have not found the answer to this question. How can I make my voice sound like Amazon’s Alexa in Adobe Audition?
Not sure about treating your own voice, but you could use the built-in computer voices - in the Effects menu, select Generate then Speech.
Or if you have an Echo device, say “Alexa, simon says ‘what you want her to say’” and record the output via the line out. Not sure about the copyright implications of this method though.
There’s also this online solution. You can record output direct into Audition if needed: