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How does the Alti-Force Sensor Pack work to show subtitles?

The sensor pack contains absolute pressure and acceleration sensors.  Our software in the camera reads several measurements each second from those sensors and saves them in a data file, as well as in the .SRT subtitle file format.  Many TVs and video players recognize the .SRT subtitle format and display the subtitle data, just like watching a subtitled movie.  The optional data files can be used for data analysis by advanced users.