Working with closed-captioning video

You can integrate closed-captioning in a video object. The captioning text is displayed within the video according to details specified within an XML file.

Select from three supported formats:

Web Video Text Tracks (WebVTT) - Captioning format for HTML media players (Recommended)
SubRip Subtitle (SRT) - Popular standard used for YouTube and Facebook captioning
eXtensible Markup Language (XML) - Captioning format for Flash video

Examples of each format are provided below.

Additionally, you can customize the caption styling, including the font and font highlighting. The following font properties can be configured within the closed-captioning file:

Font property	Description	Example
color	A general color name or a specific hexadecimal color value.	Red or #FFCC00
font-family	An installed font.	Arial
font-size	Size of the font in pixels. The default font size is 14.	12
font-style	Style of the font. The default is normal.	italic
font-weight	Weight of the font. The default is normal.	bold
text-align	Alignment of the caption text as either left, right, or center. The default is center.	Center
text-decoration	Enhanced font highlighting. The default is none.	underline

Follow these rules when creating the captioning file:

Specify the start and end times for each caption set. Time is in the format: hours:minutes:seconds:hundredths (HH:MM:SS:hhh)
Specify the text for each caption set. Text can appear on multiple lines, if desired.
Optionally, customize the font styling using a tag.
Save the file as a plain text file with the desired name and change the file extension to the appropriate captioning file format (.vtt, .srt, or .xml).

Sample files are provided to help you quickly get started creating and specifying the closed captioning file.

To specify a closed-captioning file:

Do one of the following:
- In the Title Explorer, double-click the graphic of the video object.
- In the Title Explorer, right-click the graphic and select Properties.
- In the work area, double-click the video object.
- In the work area, right-click the video object and select Properties.
On the Properties ribbon, click Add Captions in the Playback Options group. The Add Captions window opens.
For an existing captioning file, use the Caption File pull-down list to navigate and select the captioning file. Click Edit to edit the file if necessary. To view a sample format file that you can copy and paste to a text editor, click one of the three file formats under Sample caption file formats. The WebVTT format (.vtt) is recommended.
Click OK.

Examples

WebVTT (Recommended)

00:00:00.000 --> 00:00:00.000 00:00:08.000 --> 00:00:10.000 VTT Format: This line should appear at 8 seconds 00:00:10.500 --> 00:00:12.500 These two lines should appear at 10.5 seconds 00:00:17.000 --> 00:00:20.000 These two lines should appear with styling at 17 seconds!

SRT

00:00:00.000 --> 00:00:00.000
<span style="text-align:center"></span>

1

00:00:08.000 --> 00:00:10.000

SRT Format: This line should appear at 8 seconds

2

00:00:10.500 --> 00:00:12.500

These two lines should

appear at 10.5 seconds



3

00:00:17.000 --> 00:00:20.000

These two lines should appear

with styling at <span style="color: #FF0000;font-weight: bold;">17 seconds</span>!

XML

<?xml version="1.0" encoding="UTF-8"?>
<tt xmlns="http://www.w3.org/2006/10/ttaf1">
  <div>
    <p begin="00:00:00" end="00:00:00">
    <span style="text-align:center"></span>
    <p begin="00:00:08" end="00:00:10">
      XML Format: This line should appear at 8 seconds
    </p>
    <p begin="00:00:10.5" end="00:00:12.5">
      These two lines should
      appear at 10.5 seconds
    </p>
    <p begin="00:00:17" end="00:00:20">
      These two lines should appear
      with styling at <span style="color: #FF0000;font-weight: bold;">17 seconds</span>!
    </p>
  </div>
</tt>