hann()

MAYAFLUX_API std::vector< double > MayaFlux::Kinesis::Discrete::hann

(

size_t

n

)

Hann (raised cosine) taper coefficients.

Parameters

n	Length in samples

Returns

Coefficient vector of length n

Definition at line 9 of file Taper.cpp.

{
    if (n == 0)
        return {};
    if (n == 1)
        return { 1.0 };
    std::vector<double> w(n);
    const double scale = std::numbers::pi * 2.0 / static_cast<double>(n - 1);
    for (size_t i = 0; i < n; ++i)
        w[i] = 0.5 * (1.0 - std::cos(scale * static_cast<double>(i)));
    return w;
}

References scale.