Guidelines
for Usage |
Actual
types of Program Related Text are identified in the element LANGUAGE.USAGE.
The element DESCRIPTION.PROGRAMRELATEDTEXT contains
either the actual text (if of limited length) or indicates a
separate, distinct,
related file containing that text or a separate audio track.
Many Digital Asset Management Systems will associate files
that are cataloged separately, but related to an item.
Use the element RELATION.TYPE and RELATION.IDENTIFIER
to refer to the presence and identification of these other related
formats and forms
of the primary audio presentation for a resource.
Use the element LANGUAGE to identify the
language represented in alternative audio.
The various permutations of Program Related Text
may include the following:
- A transcript may exist as a text document.
- Speech-to-Text conversions may exist as (a)
a text document or (b) an electronic file with timecode synchronization
data.
- Closed
Captions may exist as (a) a text document, (b)
an electronic file with timecode synchronization data, (c)
as a video
program or broadcast with captioning encoded on SMPTE
line 21 of
the
video signal (NTSC standard), or (d) as data
encoded within the "picture user_data" portion of the video
stream in DTV (ATSC standard).
- Open Captions may exist as (a) a text document,
(b) an electronic file with timecode synchronization data,
(c) as a video program or broadcast with captioning encoded
on SMPTE line 21 of the video signal (NTSC standard), (d) as
data encoded within the "picture user_data" portion of
the video stream in DTV (ATSC standard), or (e) as a completely
separate track of text or its graphical representation (DVD-Videodisc
standard specification or QuickTime tracks specification).
- Subtitles may exist as (a) a text document,
(b) an electronic file with timecode synchronization data,
(c) as a video program or broadcast with captioning encoded
on SMPTE line 21 of the video signal (NTSC standard), (d) as
data encoded within the "picture user_data" portion
of the video stream in DTV (ATSC standard), or (e) as a
completely separate track of text or its graphical representation
(DVD-Videodisc standard specification
or QuickTime tracks specification).
NOTE: Including transcript-related content
in DESCRIPTION.PROGRAMRELATEDTEXT is not intended to interfere
with related businesses who sell transcripts for
finished programs. If such for-sale-transcripts are available,
the PBCore may or may not refer to that source and will not
provide the same content as a
uniquely catalogued asset. |