initialize_modes()

void MayaFlux::Nodes::ModalNetwork::initialize_modes ( const std::vector< double > &  ratios, double  base_decay  )

private

Initialize modes with given frequency ratios.

Definition at line 92 of file ModalNetwork.cpp.

{
    m_modes.clear();
    m_modes.reserve(ratios.size());
 
    for (size_t i = 0; i < ratios.size(); ++i) {
        ModalNode mode;
        mode.index = i;
        mode.frequency_ratio = ratios[i];
        mode.base_frequency = m_fundamental * ratios[i];
        mode.current_frequency = mode.base_frequency;
 
        mode.decay_time = base_decay / ratios[i];
 
        // Initial amplitude decreases with mode number (1/n falloff)
        mode.initial_amplitude = 1.0 / (i + 1);
        mode.amplitude = 0.0;
 
        mode.oscillator = std::make_shared<Generator::Sine>(mode.current_frequency);
 
        mode.decay_coefficient = std::exp(-1.0 / (base_decay * Config::get_sample_rate()));
 
        m_modes.push_back(std::move(mode));
    }
}

References MayaFlux::Nodes::ModalNetwork::ModalNode::amplitude, MayaFlux::Nodes::ModalNetwork::ModalNode::base_frequency, MayaFlux::Nodes::ModalNetwork::ModalNode::current_frequency, MayaFlux::Nodes::ModalNetwork::ModalNode::decay_coefficient, MayaFlux::Nodes::ModalNetwork::ModalNode::decay_time, MayaFlux::Nodes::ModalNetwork::ModalNode::frequency_ratio, MayaFlux::Config::get_sample_rate(), MayaFlux::Nodes::ModalNetwork::ModalNode::index, MayaFlux::Nodes::ModalNetwork::ModalNode::initial_amplitude, m_fundamental, m_modes, and MayaFlux::Nodes::ModalNetwork::ModalNode::oscillator.

Referenced by ModalNetwork(), and ModalNetwork().

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