biquad_bandpass() [1/2]

MAYAFLUX_API Biquad MayaFlux::Kinesis::Discrete::biquad_bandpass ( double  frequency, double  q, double  sample_rate  )

noexcept

Constant peak gain bandpass section, returned by value.

Parameters

frequency	Centre frequency in Hz, clamped below Nyquist
q	Quality factor
sample_rate	Sample rate in Hz

The same numbers as the vector form of biquad_bandpass.

Definition at line 125 of file Coefficients.cpp.

{
    const auto t = terms(frequency, q, sample_rate);
    const double a0 = 1.0 + t.alpha;
    return {
        .a1 = (-2.0 * t.cosw0) / a0,
        .a2 = (1.0 - t.alpha) / a0,
        .b0 = t.alpha / a0,
        .b1 = 0.0,
        .b2 = (-t.alpha) / a0,
    };
}

References frequency, and q.