UNIVERSAL DESIGN IN MEDIA 34.3
facial expressions, scene changes, and on-screen text. It is provided free via broadcast, cable and sat-
ellite by public television and, to a limited extent, by commercial networks such as CBS and Fox.
Funding for most broadcast and cable description is provided by the U.S. Department of Education,
but is restricted to programming appropriate for use in the classroom. The Telecom Act recognized the
need to support the growth of video description and directed the FCC to “assess appropriate methods
and schedules for phasing video descriptions into the marketplace, technical and quality standards for
video descriptions, a definition of programming for which video descriptions would apply, and other
technical and legal issues that the Commission deems appropriate.” This led to an FCC requirement
for video description that required four broadcast networks and five cable networks to each provide
video description for 4 hours of programming weekly. This mandate was challenged and overturned
in federal court based on an interpretation of the FCC’s jurisdiction as granted by the Telecom Act.
Consequently, most television programming offered with description is PBS programming such as
Nova, Masterpiece Theater, American Experience, Nature, and many children’s programs as well as
a few hours per week of programming on CBS and Fox. Older movies in the public domain are also
offered with description by the Narrative Television Network on a dedicated cable channel and on
their web site. Efforts to reestablish video description requirements have been constant, and require-
ments are included in pending legislation introduced in Congress in 2008.
Digital Television Transition
With federal funding, WGBH participated in the deliberations of the Advanced Television Systems
Committee (ATSC) to ensure that emerging DTV origination, transmission, and display standards
enabled carriage of closed captions, as required by the Decoder Act and Telecom Act. The DTV
captioning standard, EIA-708, includes many new capabilities such as up to 63 caption services,
viewer-sizable fonts, multiple font choices, multiple caption windows, and additional color, border,
and drop shadow options. As of 2009, user-controlled caption styles are widely available as TV
providers translate 608 caption data into 708 data for inclusion in digital TV signals. Government-
subsidized converter boxes have been made available for Americans who own analog TV sets and
who do not want to purchase new DTV sets or cable TV services. These converters are required to
support 608 caption decoding, and many offer 708 caption features as well.
DTV also holds great promise to make descriptive video widely accessible to consumers. In ana-
log broadcasts, DVS was broadcast via the Second Audio Program (SAP) which meant the viewer
had to have a stereo TV or a stereo VCR that included the SAP feature. Digital television, however,
supports multiple audio tracks and offers built-in access to descriptive video.
Yet finding caption and description controls on new DTV sets or on DTV converter boxes is not
always easy. Also, many viewers who subscribe to cable or satellite experience caption or descrip-
tion problems caused by carriers’ inadvertent errors passing through the signal. This illustrates how
access features can be impacted by both user interface designs and the technology distribution chain.
An FCC task force has been established to address some of the problems encountered by caption and
description users in the new DTV environment.
34.3 MULTIMEDIA AND THE WEB
Multimedia combine dynamic and interactive elements such as text, audio, video, graphics, and
animation and are most commonly packaged within DVDs, web-delivered software, or dedicated
web sites. Accessibility requirements include text display of captions of audio, description of static
and dynamic images and video, and accessible user interfaces. Solutions depend on adherence to the
W3C’s Web Content Accessibility Guidelines (WCAG 2.0) and the authoring of accessible videos,
pdf’s, Flash, and other media.
Currently, the major formats for providing media via the web—QuickTime, Flash, Windows
Media, and RealMedia—can all support captions and descriptions and provide user controls. WGBH