[Python] How to create a numpy array from a pydub AudioSegment?

I'm aware of the following question: How to create a pydub AudioSegment using an numpy array?

My question is the right opposite. If I have a pydub AudioSegment how can I convert it to a numpy array?

I would like to use scipy filters and so on. It is not very clear to me what is the internal structure of the AudioSegment raw data.

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