Speech (TTS) - FCC Audible Crawl Rule:
The 21st Century Communications and Video Accessibility Act was passed
by Congress to update our nation’s telecommunications protections for
people with disabilities. The CVAA follows a string of laws, passed in
the 1980s and 1990s that were designed to ensure that telephone and
television services would be accessible to all Americans with
disabilities. The 'Audible Crawl Rule' requires that emergency
information is available in an audible format as well as the
traditional crawl that is often scrolled across the viewer’s TV
screen. This information is available on the SAP (secondary audio
program) of your television or set top box. Below are
instructions on activating this feature:
1.) The "Spanish" channel (second audio) is
used to pass the audio for the visually impaired viewers called Text To
2.) If you do not hear audio, check to make
sure your TV or set top box has the audio set to ENGLISH.
3.) The TTS audio on the second audio channel
will have an aural version of any crawl information put onto it.
programming it will have the "Video descriptor" audio that NBC
4.) During non-NBC programming that audio
channel will be silent.
Below are several
TV assistance, for changing from
Spanish to English on TVs and set top boxes..
How to Change SAP Settings click here