How to change sound with Arduino?

Question

Arduino

Hello.
Who knows how the incoming sound from the microphone (max9812 - this is for example) directly into the arduino, you can change and make the sound or voice of the robot (for example) "crooked", and output the result to the speakers.
PS Thank you!

Answer 1

Detect carrier frequency.
Then you detect harmonics, and you get a spectrum.
You determine by the spectrum what kind of phoneme sounds.
You replace the phoneme with a sample of the phoneme of another voice. For example, the voice of a robot.