FFT Wrong?

[simply_me]

Or this one actually looks better, but the amplitude is very high.

[altenbach]

Since your FFT is "DC centered", you also need to set the offset of the X-axis to ensure that zero is in the center.

What kind of scaling do you want for the y-axis?

[simply_me]

Which method do you think is the right one?

For the second plot it would have been nice if I could normalize the y-axis, it's fine that the x-axis isn't 0 centered.

[altenbach]

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@simply_me wrote:

Which method do you think is the right one?

For the second plot it would have been nice if I could normalize the y-axis, it's fine that the x-axis isn't 0 centered.

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This post is a question and a comment. So why is it marked as solution to the initial question?

(You can change that. Please mark the post that best answers the question discussed in this thread.)