decay_from_q()

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

noexcept

Ring time of a bandpass section of a given Q.

Parameters

frequency	Centre frequency in Hz
q	Quality factor
sample_rate	Sample rate in Hz

Returns

Seconds for the ring to fall by 1/e, zero when the section does not ring

Definition at line 166 of file Coefficients.cpp.

{
    const auto t = terms(frequency, q, sample_rate);
    if (t.alpha >= 1.0)
        return 0.0;
    const double radius = std::sqrt((1.0 - t.alpha) / (1.0 + t.alpha));
    return decay_from_pole_radius(radius, sample_rate);
}

References decay_from_pole_radius(), frequency, q, and radius.

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