WHAT ARE CAPTIONS?
Captions are words displayed on a television screen that
describe the audio or sound portion of a program. Captions allow viewers
who are deaf or hard of hearing to follow the dialogue and the action of
a program simultaneously. They can also provide information about who is
speaking or about sound effects that may be important to understanding a
news story, a political event, or the plot of a program.
Captions are created from the transcript of a program. A captioner
separates the dialogue into captions and makes sure the words appear in
sync with the audio they describe. A specially designed computer
software program encodes the captioning information and combines it with
the audio and video to create a new master tape or digital file of the
program.
Open and closed captions
Captions may be "open" or "closed." To view closed captions, viewers
need a set-top decoder or a television with built-in decoder circuitry.
Open captions appear on all television sets and can be viewed without a
decoder. In the past, some news bulletins, presidential addresses, or
programming created by or for deaf and hard-of-hearing audiences were
open captioned. With the widespread availability of closed-caption
technology, open captions are rarely used.
Digital closed captioning
Closed captioning has become available for digital television sets,
such as high-definition television (HDTV) sets, manufactured after July
1, 2002.1 Digital captioning provides greater flexibility by enabling
the viewer to control the caption display, including font style, text
size and color, and background color.
1 Zenith Electronics Corporation, July 1, 2002
Real-time captioning
Real-time captions are created as an event takes place. A captioner
(often trained as a court reporter or stenographer) uses a stenotype
machine with a phonetic keyboard and special software. A computer
translates the phonetic symbols into English captions almost
instantaneously. The slight delay is based on the captioner's need to
hear the word and on the computer processing time. Real-time captioning
can be used for programs that have no script; live events, including
congressional proceedings; news programs; and nonbroadcast meetings,
such as the national meetings of professional associations.
Although most real-time captioning is more than 98 percent accurate,
the audience will see occasional errors. The captioner may mishear a
word, hear an unfamiliar word, or have an error in the software
dictionary. Often, real-time captions are produced at a different
location from the programming and are transmitted by phone lines. In
addition to live, real-time captioning, captions are being put on
prerecorded video, rental movies on tape and DVD, and educational and
training tapes using a similar process but enabling error correction.
Electronic newsroom captions
Electronic newsroom captions (ENR) are created from a news script
computer or teleprompter and are commonly used for live newscasts. Only
material that is scripted can be captioned using this technique.
Therefore, spontaneous commentary, live field reports, breaking news,
and sports and weather updates may not be captioned using ENR, and
real-time captioning is needed.
Edited and verbatim captions
Captions can be produced as either edited or verbatim captions.
Edited captions summarize ideas and shorten phrases. Verbatim captions
include all of what is said. Although there are situations in which
edited captions have been preferred for ease in reading (such as for
children's programs), most people who are deaf or hard-of-hearing prefer
the full access provided by verbatim texts.
Rear window captioning
More and more movie theaters across the country are offering this
type of captioning system. An adjustable Lucite panel attaches to the
viewer's seat and reflects the captions from a light-emitting diode
(LED) panel on the back of the theatre.
Current research
Researchers are studying caption features, speeds, and the effects of
visual impairments on reading captions. This research will help the
broadcast television industry understand which caption features should
be retained and which new features should be adopted to better serve
consumers. Other research is examining the potential for captions as a
learning tool for acquiring English-language and reading skills. These
studies are looking at how captions can reinforce vocabulary, improve
literacy, and help people learn the expressions and speech patterns of
spoken English.
The law
The Americans with Disabilities Act (ADA) of 1990 requires that
businesses and public accommodations ensure that disabled individuals
are not excluded from or denied services because of the absence of
auxiliary aids. Captions are considered one type of auxiliary aid. Since
the passage of the ADA, the use of captioning has expanded.
Entertainment, educational, informational, and training materials are
captioned for deaf and hard-of-hearing audiences at the time they are
produced and distributed.
The Television Decoder Circuitry Act of 1990 requires that all
televisions larger than 13 inches sold in the United States after July
1993 have a special built-in decoder that enables viewers to watch
closed-captioned programming. The Telecommunications Act of 1996 directs
the Federal Communications Commission (FCC) to adopt rules requiring
closed captioning of most television programming.
Captions and the FCC
The FCC rules on closed captioning became effective January 1, 1998.
They require people or companies that distribute television programs
directly to home viewers to make sure those programs are captioned.
Under the rules, 100 percent of nonexempt programs shown on or after
January 1, 1998, must be closed captioned by January 1, 2006. Also, 75
percent of nonexempt programs shown before January 1, 1998, must be
closed captioned by January 1, 2008. The rules do not apply to
videotapes, laser disks, digital video disks, or video game cartridges.
Who is required to provide closed captions?
The rules apply to people or companies that distribute television
programs directly to home viewers (video program distributors). Some
examples are local broadcast television stations, satellite television
services, and local cable television operators. In some situations,
video program providers are responsible for captioning programs. A video
program provider can be a television program network (for example, ABC,
NBC, UPN, Lifetime, A&E) or other company that makes a particular
television program. However, since networks do not distribute television
programs directly to home viewers, they are not responsible for
complying with the captioning rules and are not required to respond to
complaints from viewers. However, broadcast and cable networks and
program producers pay close attention to captioning issues and, along
with the U.S. Department of Education, are the primary source for
funding of captioning.
When will I see more closed-captioned programming?
The FCC rules can create transition periods during which the amount
of closed-captioned programming will gradually increase. During 2000 and
2001, video program distributors must provide captioning for 450 hours
per channel per calendar quarter of new programs (programs shown on or
after January 1, 1998). In 2002 and 2003, distributors must increase the
hours per channel of captioned programming to 900 per calendar quarter
for new programs. In 2004 and 2005, 1,350 hours per channel per calendar
quarter of new programs must be captioned.
If a video program distributor is already providing more than the
required hours per channel during a specific calendar quarter, that
distributor must continue to provide captioned programming at
substantially the same level as the average level it provided during the
first 6 months of 1997.
For programming shown before January 1, 1998, at least 30 percent of
a channel's programming during each calendar quarter must be captioned
starting January 1, 2003.
What programs are exempt?
Some advertisements, public service announcements,
non-English-language programs (with the exception of Spanish programs),
locally produced and distributed non-news programming, textual programs,
early-morning programs, and nonvocal musical programs are exempt from
captioning. The FCC plans to review the program exemptions later to
determine whether any changes are necessary.2
2 The Caption Center
To find out more about the FCC rules and captions, including
information on the complaint process, call
Voice: 1-888-CALL-FCC (1-888-225-5322)
TTY: 1-888-TELL-FCC (1-888-835-5322)
Locally at (202) 418-7096
TTY: (202) 418-7172
Internet:
http://www.fcc.gov/cgb/dro/caption.html
Other Resources
NIDCD Information Clearinghouse
1 Communication Avenue
Bethesda, MD 20892-3456
Voice: (800) 241-1044
TTY: (800) 241-1055
E-mail: [email protected]
Internet: http://www.nidcd.nih.gov
Media Access Group at WGBH
125 Western Avenue
Boston, MA 02134
Voice/TTY: (617) 300-3600
E-mail: [email protected]
Internet: http://access.wgbh.org
Department of Television, Film, and Photography
Gallaudet University
800 Florida Avenue, NE
Washington, DC 20002
Voice/TTY: (202) 651-5115
League for the Hard of Hearing
71 West 23rd Street
New York, NY 10010
Voice: (917) 305-7700
TTY: (917) 305-7999
E-mail: [email protected]
Internet: http://www.lhh.org
National Association of the Deaf
814 Thayer Avenue
Silver Spring, MD 20910-4500
Voice: (301) 587-1788
E-mail: mailto:[email protected]
Internet: http://www.nad.org
National Captioning Institute
1900 Gallows Road, Suite 3000
Vienna, VA 22182
Voice/TTY: (703) 917-7600
E-mail: [email protected]
Internet: http://www.ncicap.org
National Center for Accessible Media
125 Western Avenue
Boston, MA 02134
Voice: (617) 300-3400
TTY: (617) 300-2489
E-mail: [email protected]
Internet:
http://ncam.wgbh.org/index.html
National Shorthand Reporters Association
118 Park Street S.E.
Vienna, VA 22180
Voice: (703) 281-4677
Note: Many commercial vendors and some specialized software will
allow individuals, groups, and schools to create captions.
NIH Publication No. 00-4834
July 2002
Reviewed: July 2002
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