How to compare two voice samples in iOS?

First of all, I would like to state that my question is not about the “classic” definition of voice recognition.

What we are trying to do is slightly different in the sense of:

  • User records his team
  • Later, when the user speaks a pre-recorded command, a specific action will occur.

For example, I record a voice command to call my mom, so I click on it and say “Mom”. Then, when I use the program and say “Mom,” she will automatically call her.

How to compare a spoken command with a saved voice sample?

EDIT: We don’t need any text-to-speech capabilities, just for comparing audio signals. Obviously, we are looking for some kind of finished product or framework.

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