What
is Captioning?
When you see a TV video or a movie,
sometimes you might have seen text being displayed at the bottom. This text is
called as captions or subtitles. Captioning is converting the spoken voice into
text and displaying it in a synchronized manner with the voice. The transcription
of digital files is done by a professional
transcriber.
Types
of Captions:
They are of 2 types – Open captions
and closed captions.
What
is Closed Captioning?
In closed captions, the text
that is displayed at the bottom of the television can be disabled or enabled. Hence
the name ‘Closed’. Subtitles displayed at the bottom of the TV screens are an
example of CC. In order to display the text, a decoder is required. The text is
usually separate from the original video file. Closed captioning
abbreviated as CC compared to Open Captions(OC) have become more popular today
owing to its benefits. Companies such as Google for its video delivery network
use CC. Recently they announced expanded the CC service into Google plus where
users who hangout at Google+ will be able to have transcript of the spoken
audio. Hulu another video CDN gives users the options to search captions. Federal Communications Commission (FCC) has
mandated the requirement of CC as part of digital television.
Who
uses Closed Captioning? Some of the users of CC
are:
- Digital Video Content Delivery
Networks such as Youtube, Hulu etc.
- TV Broadcast stations
- Radio Shows.
- Video documentary makers
- Podcast
- Classrooms
- Translation companies
- Language coaches
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| Google+ Hangout is now Caption enabled |
What
is Open Captioning?
In CC, the watcher or listener
has the option to disable or enable the subtitle from being displayed on the
screen. In an OC, there is no such options. It will always in display mode
always. There are many benefits of open captions. One is, watching TV at noisy
places such as airports, stations, waiting rooms and even at quieter places
such as hospitals. Due to the noise levels, its hard to hear what the speakers
are speaking. Hence with the help of OC one can listen to TV news or shows.
Also, for activating a CC one may have to request the operator to enable
captions, which is difficult for people watching video in public. An always ON
Caption, there is no such need to ask to switch on the subtitles.
With the advantages discussed above, OC has
its disadvantages. For some people it might be a source of distraction and it
can become a nuisance when disabling the rotating text is not possible.
9
Benefits of Captioning:
- Watch Videos silently by
reading CC.
- Anyone hard of hearing can
watch a movie with the help of captions.
- Watch videos in other languages
using subtitles.
- Captions help in SEO.
- Archive CC into word
transcripts citations and reference.
- Display CC as Transcript just
below the video.
- Captions can be incorporated
in Podcast in the form of transcripts..
- CC help where the audio clarity
is poor.
- Helps in understanding heavy
accent jargons and technical names.
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| TV at Airport |
Who
Uses Open Captioning?
OC was popular at one time,
however with the rise of digital networks such as Youtube,Hulu, Netflix and
Vimeo, producers and media communication companies use CC most of the times. The earlier applications
of OC were seen TV shows, foreign language movies such as Spanish,French
films,VHS tapes etc.
Basic Steps of Captioning:
There are 4
basic steps for displaying a subtitle starting with-
Step 1 is Transcription:
Is
the process of typing the spoken speech into text. The spoken audio or video is
transcribed word for word by hand by professionals called transcriptionists. The
draft or rough version of the transcript is prepared and then send to
proofreading.
Step 2 of Proofreading:
Is the process of checking the document for any errors in grammar, spellings,
formatting, spacing and correcting it. Proofreading a document usually takes
around 15% of the original time taken to transcribe the file. Its best to get
the file proofread and checked for errors by someone other than the first
transcriber. This yields higher accuracy rate. Once it’s done, the process of
timecoding begins.
Step 3 is Timecoding:
Each frame of video is identified in minutes,hours and seconds. A
time code looks something like this- 01:08:33 which is HH:MM:SS (Hours:Minutes:Seconds)
In the process of timecoding, each speech by the speakers (however
long or short it may be) is denoted by the start and stop of that particular
speech. For example:
1
00:00:01,00 --> 00:00:08,90
Hi Daniele,Nice to hear your voice.
2
00:00:9,10 --> 00:00:11,90
Hey John, Thank you! How has your health been?
These codes are prepared for the entire
duration for of the digital file and then complied in a word or notepad
document.
Step 4 of Software coding: The above documents can then be loaded into a Subtitling software
such as Swift TX or DVD Studio pro and then installed.
How
much does it cost?
Rates for subtitling are charged
according to the lend of the audio or video. Since the process involves
transcribing the digital file, proofreading it , timing it according to the
speech and then coding using a suitable software, the cost can run in hundreds
of dollars. Rates start at US$ 3per
minute and can go as high as 5 dollars. Transcribing a 60 minute documentary will cost
somewhere around 180 dollars if charged at US$3/Min.
For foreign language captioning work such
as Spanish translation or Mandarin Captioning, the digital speech will need to
be translated first, then transcribed into English language following which it
will be coded. Translating results in extra costs or around US2$/Minute. Some popular types of non-english language
translations are:
- Spanish translation
- German translation
- Mandarin translation
- French Translation
- Arabic translation
- Hindi translation
- Urdu Translation
- Cantonese translation
Youtube
CC:
Accurate or not? YouTube transcribes and
displayed the subtitles of videos using its proprietary algorithm. Though the
softwares are technically sound, many times its seen that YouTube captions may
not be accurate. Accuracy is highly dependent on the audibility and accent of
the speaker. Since the launch of the CC service a few years ago, the software
is able to understand more and more difficult words. Its expected that as times
passes, the software’s capability will mature.
Users have the option to upload captions
into Youtube. In order to do this, one needs to type the speech in notepad in
number the lines. Then insert the corresponding time codes. The resultant text
in notepad will look something like this:
1
00:00:01,00 --> 00:00:08,90
Hi, What did you learn today?
2
00:00:9,10 --> 00:00:11,90
Here is a simple guide on..
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Youtube Captioning
|
5 Potential
Application of Closed Captioning
- People with hearing problem: CC’s are
very usefully for people suffering from hearing problems. People can go and
study in a classroom or watch entertainment shows without increasing the
volume. For deaf people, it’s a boon and as very useful tool.
- Ipads and Smartphones: Ipad gives its
users to enable CC so that people watching a video in silence zone or those who
have difficulty in hearing can read the text. However, Captions are available for
videos that come with a .Srt file. Similarly, one can use the same features in
Android based tablets and smartphones.
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| Watch Captions in Ipad |
- Skype and Video Messengers: Skype, a popular tool for VOIP can use captions
for those require. Skype has a major user base of professionals conducting telephonic
calls and video chats for business meetings. These meetings can be transcribed,
set up with a caption and then be used for further usage.
- Language learning Classrooms: Classroom teaching language courses can
utilize captioning to a better extent. Videos and guided teaching using digital
videos can be done using projectors containing subtitles. This can make
learning easy and fun. Learners with English as Second language (ESL) find such
methods of learning easier compared to traditional green-board teaching. Also,
since digital videos and audio courses are portable in the form of CD/DVD’s,
students can carry on their learning outside of classrooms. If needed, academicians
and students can transcribe courses and include it as subtitles for the benefit
of the classroom. The recent
blog post guiding academicians on transcription discusses this.
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| Effective learning tools using Video PPT's |
- Digital Marketing and SEO: In our recent blog post, we discussed
methods for Podcast SEO. One such tip was to transcribe all podcast and
incorporate the transcript on the same page. Many SEO professionals and digital
marketing agencies still overlook this method of promotion. Most videos or
podcasts that feature on a website do not come with a transcript. One benefits
of having the video transcribed and putting the transcript on the same page is
that it helps in quality SEO. Also, the transcribed version of the file can be
converted into subtitles which can benefit viewers and podcast listeners.
Podcast transcription and video transcription is highly recommended for SEO
professionals.
About
the Author:
George Wong, hailing from Chicago, USA
is a transcriber by profession. He wrote this article for AllTranscript.com
blog. George has been working on transcription and captioning projects for the
past 3 years. His experience includes transcription, proofreading and captioning.
His favorite type of transcription is Podcast Transcription.
About AllTranscript.com Inc:
Alltranscript.com Transcription Inc (@Alltranscript), a company that
specializes in digital transcription services. Services also include captioning
services such as Closed captions and Open captioning. All backend typing work is done by
experienced transcriptionists. USP of Alltranscript.com: Accurate transcription
services made affordable.