Function iir_bandpass¶

`function` iir_bandpass(const zpk &, double, double, double) dsp ¶

zpk iir_bandpass(const zpk& filter, double lowfreq, double highfreq, double fs = 2.0)

Designs a digital bandpass IIR filter and returns ZPK coefficients.

Parameters
filter	Analog lowpass prototype (butterworth, chebyshev1, chebyshev2, bessel, or elliptic).
lowfreq	Lower cutoff frequency in Hz. If fs is omitted (left at its default of 2.0), frequencies are interpreted as normalized to Nyquist, so the valid range is 0..1.
highfreq	Upper cutoff frequency in Hz. See note on lowfreq.
fs	Sampling frequency in Hz (default 2.0, i.e. Nyquist = 1 Hz).

Returns
	Digital bandpass filter in ZPK form.

Fully qualified name: kfr::iir_bandpass(const zpk &, double, double, double)

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