Cisco Model D-PCG1000 PowerKEY CAS Gateway
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4038960 Rev A
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Described Video Services (DVS) is an audio track feature that
describes video to aid the visually-impaired. It provides
visually impaired viewers with audio descriptions of key
elements in a program, such as what is happening on the screen,
during pauses in the dialogue.
This chapter explains how to configure the system to support
This chapter explains how to configure the system to support
DVS.
Important:
Important:
DVS support is not enabled by default.
The following versions of client software are required to
support the features provided with this version of
application server software.
Application Server Platform
Client Software
4250SD/HD
PowerKEY
®
5.3.1
8300SD/HD DVR
DVR 1.7.0
8500SD/HD DVR
DVR 1.7.0
Follow these guidelines when you enable DVS support:
Do not enable this option unless you are familiar with DVS
and your content is encoded with DVS audio streams.
Remember that obtaining and providing audio streams is
the responsibility of the operator.
Check that DVS audio streams are encoded within an MPEG
program.
Source definition and session configuration must be set up
to carry the DVS PID (Program ID).
4
Chapter 4
Setting Up Described Video
Services