Thanks to the universality of the underlying CTS technology, measuring digital broadcasts is as straightforward as it is in the analogue realm. In fact, the audio streams obtained from a digital set-top-box have no difference whatsoever with the ones present in analogue transmissions. This makes the digital issue irrelevant in the UNITAM world.

In fact, in order to measure digital broadcasts, all that is required is to generate the corresponding signature stream from each channel to be measured. This requires just to set up a “reference room” in which a number of reference boxes are installed and generate the required reference signatures, which are then simply included in the database at scanning time.

Because each reference stream is a valuable resource essential to measure the associated channel, the output of each signature generator must be properly monitored and backed up. UNITAM includes several tools to accomplish this purpose reliably and effectively, among which it’s worth mentioning the advanced surveillance system that continuously performs routine checks and calls for an intervention in the event of any inconsistency or suspicious situation.