freqz_plot

Signal Processing

Plot filter magnitude and phase response with auto-annotations: cutoff frequencies, passband ripple, stopband attenuation, and filter type classification. Superior to raw freqz() output.

Syntax

freqz_plot(b, a)
freqz_plot(b, a, 1024)

Examples

[b, a] = butter(4, 0.3);
freqz_plot(b, a)
▶ Run

See Also

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