To reduce the number of signal lines for connecting an current detector and a solenoid electrically. The media monitor system is adapted to be coupled to a plurality of client systems, the media monitor system includes an information retriever, a distributor, and an analyzer. A sensing element and electronic circuitry are disposed within the at least one cavity. A realization of the digital score is also processed to generate a second series of second time intervals, which each have a significant dynamic change of the realization.