std::shared_ptr<const AudioBuffers> run (std::shared_ptr<const AudioBuffers>);
std::shared_ptr<const AudioBuffers> flush ();
void reset ();
void set_fast ();
private:
std::shared_ptr<const AudioBuffers> run (std::shared_ptr<const AudioBuffers>);
std::shared_ptr<const AudioBuffers> flush ();
void reset ();
void set_fast ();
private: