For many decades, video
has played a vital part in education. However, today in computer-based
multimedia format, video is utilized
increasingly in web-based and distance learning educational applications.
Nevertheless, the audio aspect of a video presentation is unreachable to people
who don’t hear or are hard of hearing.
Captions refer
to the onscreen text displayed on a video
product’s dialogue, description of relevant sounds not accessible to people.
These captions are in accord with the image of the video in order to enable viewers to have access to the content.
Caption
are of two types: Open captioning
and closed captioning.
1. The only difference between them is that open caption is always in view and the viewers cannot turn them off whereas the viewer
can turn off the closed captioning.
2. Videos accessible on the Internet may be
open or closed captions.
3. The closed captions show
only they are supported by the user agent. Recently, most media viewer software
applications support the close video
captioning.
The advantage of
using open captioning services for videos
1. The provision of video products with closed
captioning brings the responsibility to the user in understanding how to turn
the captions on, either in their media viewer software or on their television
sets. Therefore, the user is not confronted with the burden, some individual
debate in favor of using open captioning services for video products.
2. Open-captioning promoters also advocate that
captioning has a global design and benefits people with hearing impairment or
those whose English Language is not their primary language. Besides this, the
use of caption is beneficial for people in health clubs, noisy areas or within
sports bars. In addition, in the situation where the spoken word is on the open caption, it is not required for people
with speech impairments.
3. In spite of the benefits of using open captions,
there are also demerits. The open captioning rates differ and are calculated based on different factors such
as length of the video, turnaround time,
etc. some disadvantages result from the
fact that the use of open caption is an integral part of the video stream while
in the case of closed captions, it exists as a different text stream.
4. Users can
potentially index and archive video content if the captions are preserved as
text. Additionally, open caption when compared to closed captions, are subject
to loss of quality if the encoded video
is compressed. With the mixture of disadvantages and advantages of closed and
open captioning, it is significant for video creators to estimate the use of
the video production with an informed
result concerning which particular type of captioning to use.
5. For instance, if
a particular training video is made for people with disabilities, people in noisy area, or for large audiences, open caption may be your perfect option.
Nevertheless, open captioning rates differ from one company to another and depends
on the quality that you want from these particular service providers. for more info visit our captioning services
No comments:
Post a Comment