MoPix

This page supplies additional information on MoPix, as supplied by WGBH Media Access' Director of Technology in October 2012.

The MoPix product is compatible with the digital cinema environment. Specifically:

Rear Window Captioning (RWC) displays are compatible with all digital cinema hardware installed in the U.S. Some digital cinema servers (DCS) support a direct connection to RWC displays, and require no additional hardware interface. Other DCS manufacturers support RWC via a standard Auxiliary Content Server (ACS) interface box. The ACS interface is part of the digital cinema standard developed at SMPTE for the industry. ACS interfaces are designed to read timeline and caption content from a server and broadcast synchronized captions to any supported closed captioning systems.
Descriptive Video Service (DVS). DVS, sometimes known as Audio Description (AD) or Video Description (VD) or Video Narration (VN) or Visually Impaired (VI) content, is compatible with all digital cinema hardware installed in the U.S. This ancillary audio track is included in most first/run movies, and can be routed to any standard DVS rendering hardware, typically infrared or wireless emitters broadcasting to headsets.