void update_meters(const std::vector<float> &samples);
void add_bus_to_master(unsigned bus_index, const std::vector<float> &samples_bus, std::vector<float> *samples_out);
void measure_bus_levels(unsigned bus_index, const std::vector<float> &left, const std::vector<float> &right);
void update_meters(const std::vector<float> &samples);
void add_bus_to_master(unsigned bus_index, const std::vector<float> &samples_bus, std::vector<float> *samples_out);
void measure_bus_levels(unsigned bus_index, const std::vector<float> &left, const std::vector<float> &right);