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I was trying your “FIR Filter Design for Loudspeaker Equalization” tutorial on the new beta of FIR Designer (well, I never attempted it in version 2) and noticed a significant divergence in the phase response of the loudspeaker after flattening the magnitude response in the Magnitude Adjust tab. The corrected phase slope (red graph), instead of tending toward zero, moves away and is “worse” than the uncorrected one, see the screenshot below. In your tutorial, the opposite happens. I am doing something wrong here?
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