Response

Octave - freqz strange results

Octave - freqz strange results
  1. How to plot frequency response in octave?
  2. What is Freqz?

How to plot frequency response in octave?

In order to calculate it on MATLAB / Octave you can do the following: % Assuming Impulse Response is given by 'vImpulseResponse' vFreqResponse = fft(vImpulseResponse); figure(); plot(abs(vFreqResponse)); Enjoy. Save this answer.

What is Freqz?

freqz determines the transfer function from the (real or complex) numerator and denominator polynomials you specify and returns the complex frequency response, H(ejω), of a digital filter. The frequency response is evaluated at sample points determined by the syntax that you use.

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