magnitude_spectrum_per_channel()

std::vector< std::vector< double > > MayaFlux::magnitude_spectrum_per_channel	(	const std::vector< Kakshya::DataVariant > &	channels,
		size_t	window_size = 0
	)

Compute magnitude spectrum per channel for multi-channel data.

Parameters

channels	Vector of channel data
window_size	FFT size (0 = use data size)

Returns

Vector of magnitude spectra, one per channel

Definition at line 674 of file Yantra.cpp.

{
    auto a = std::make_shared<Yantra::StandardEnergyAnalyzer>();
    a->set_energy_method(Yantra::EnergyMethod::SPECTRAL);
    if (window_size > 0)
        a->set_window_parameters(window_size, window_size / 2);
    auto result = a->analyze_energy(channels);
    std::vector<std::vector<double>> spectra;
 
    spectra.reserve(result.channels.size());
    for (const auto& ch : result.channels) {
        spectra.push_back(ch.energy_values);
    }
    return spectra;
}

References a, and MayaFlux::Yantra::SPECTRAL.