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  1. Lucky-Luka

    THD vs frequency

    Hi all I've found this link: http://www.audio-perfection.com/audio/audio-total-harmonic-distortion-analyzer-for-ltspice-making-thd-vs-amplitude-and-frequency-sweeps-in-ltspice.html I'm trying to understand how to use this script properly. Can someone tell me how I can plot the THD vs freq...
  2. mading2018

    THD in LTspice?

    Do anyone know how to check the THD (fft) in a easy way in LTspice? When I press the FFT-button, I got this window popping up. What should I select there? Maybe an alternative is to do this instead: I found somewhere that you need to write a SPICE directive like this: ".fourier {Freq}...

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