Modify Plot Spectrum

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SINTORMAN
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Joined: Wed Mar 14, 2012 6:53 am
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Modify Plot Spectrum

Post by SINTORMAN » Tue Apr 24, 2012 6:28 am

How can I modify plot spectrum to show a specific frequency range and change the step of the plot so say 100hz to 300hz with a step of 1 so 100..., 101..., 102....


/ can someone make a new plugin to do this?

edgar-rft
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Joined: Sun Jan 20, 2008 12:03 am
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Re: Modify Plot Spectrum

Post by edgar-rft » Tue Apr 24, 2012 10:40 am

The only way to change the "Plot Spectrum" in the Audacity "Analyse" menu is adding new functions to the Audacity C/C++ source code.

The builtin Audacity Nyquist FFT functions are broken (see this thread), so writing a plugin with already builtin Audacity Nyquist functions is currently not possible and I have no idea when this will be fixed.

The only workaround I know is using the Spectutils package together with GNU Octave (free MatLab clone) and Gnuplot to make your own 2D and 3D FFT spectrograms.

- edgar

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