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The previous page discussed captioning through commands and markers in the video editing software, Windows Media On-Demand Producer (WMODP). This page discusses techniques specific to saving, publishing, and testing a video file that was captioned using Windows Media On-Demand Producer (WMODP).

Saving the Captioned Video File

Once commands and markers have been inserted, you will need to save the video as a .ASF file; this creates a streaming version of the original video.

To save the captioned video as a .ASF file:

1. Go to the 'File' menu and select 'Save as windows media.'
2. The 'Save as Windows Media Wizard' dialog box now appears asking whether you want to "Encode a new file" or "Encode the current file." It is recommended to keep the default choice of "Encode the current file."
3. Select the 'Next' button to continue.
4. The wizard now prompts you to "Select an Encoding Template appropriate for the type of Internet connection on which the file will be running." This encoding template is based on connection speed, which is measured in Kilobits per second (Kbps) and is used to determine how much compression should be used for the video file (see Image 13) .
   
   Note: Compression is necessary, because otherwise the video is too large to send over even a high-speed connection.
   
   

   Image 13: Selecting an 'Encoding Template' in the 'Save as Windows Media Wizard'
   
   

Suggestions for selecting an encoding template in the 'Save as Windows Media Wizard' include:

• If the audience is using 28.8 Kbps modems to access the video, then select one of these three options:
  • If the video contains mostly voice such as a lecture, choose "28.8 Video - Voice."
  • For video that has music or a broad range of frequencies, choose "28.8 Video - Audio Emphasis."
  • When streaming from a Web Server, choose "28.8 Video for Web Server."
  
  
  Note: If uncertain about the connection speed of the audience, it is best to select the "28.8 Video for Web Server" option; this makes the video accessible to most people.
• If the audience uses a higher speed dial-up, you could select a 56 Kbps option.
  
  Note: Users with 28.8 Kbps modems will not be able to view video encoded with a 56 Kbps option.
• For an audience using a local area network (LAN), you could select a 100+ option.
• Most of the standard templates that are built into the 'Save as Windows Media Wizard' will be appropriate. However, if you have specific requirements such as large bandwidth or changing the size of the video to something other than 320 pixels wide by 240 pixels high, a custom template is needed. Select the 'Custom' button and refer to the instructions on Creating a Custom Encoding Template.

5. The 'Save as Windows Media Wizard' prompts you to specify the directory where this .ASF file will be located.
   
   Note: It is best to store all the files together in one directory.
   • If planning to put the video on a server, you should enter the full path of where the media will be stored such as "\\ServerName\MyDirectory\Videos."
   • If uncertain about the server path, you should save the file locally on your computer.
     
     Note: For the examples in this module, you should save all video files into a directory called c:\temp. If you get a dialog box asking to overwrite the old file, select 'Yes.'
     
      
6. Select the "Finish" button to complete the conversion of the video into a .ASF file.
    

Publishing the Captioned Video File

Publishing a video file to the Internet involves creating a webpage that has the video embedded in it. This webpage will require some relatively involved JavaScript, which Windows Media On-Demand Producer (WMODP) can create for you. Along with this webpage, meta files are created that are used to tell the computer where files are located.

You are ready to published the video file if you have:

• Adjusted the audio and video levels.
• Inserted commands and markers.
• Saved the video project and all associated files into the same directory.
  
  Note: Make certain the video is saved as a .ASF file (as described in the previous section of this page Saving the Captioned Video File. Also, for the examples in this module, you should save all video files into a directory called c:\temp. If you get a dialog box asking to overwrite the old file, select 'Yes.'

To publish the captioned .asf file:

1. Open the Windows Media software through two options:
   • Selecting the 'On-Demand Producer' icon from your desktop
   • Or, select the 'Windows Media Producer' item from your start menu.
2. Go to the 'File' menu and select 'Open/Add.'
3. Browse to and select the desired audio or video file.
4. Select the 'Open' button to load the file into the project window.
5. Go to the 'File' menu and select 'Publish Windows Media.'
6. You will be presented with a 'Publish Windows Media Wizard' to guide you through the publishing phase.
7. Select the 'Next' button.
8. In the 'Publish Windows Media Wizard', you will be prompted to create a 'redirector file', which contains information about where files are located (see Image 14).
   
   

   Image 14: Creating a redirector file in 'Publish Windows Media Wizard'
   
   

9. In the 'Publish Windows Media Wizard', you will be prompted to create to create an HTML file, which the video file will be embedded into (see Image 15).
   
   

   Image 15: Creating an HTML file in 'Publish Windows Media Wizard'
   
   

To create an HTML file:

1. Select the "Generate HTML file" checkbox; this will enable four fields in the current dialog box.
2. First textfield is the name of the redirector file (.ASX file) that was generated in step 8 and should not have to be changed.
3. Second textfield is the destination director of the redirector file that was generated in step 8. This is normally a network path such as "\\Server\Inetpub\wwwroot\Directory."
   
   Note: If you are doing this on your local machine, you should type in the name of the directory, such as "c:\temp."
4. Third field is a select box for choosing the kind of HTML template to use; you must select "WMClosedCaption."
5. Fourth textfield is the destination of the HTML file that is about to be generated. This is normally a network path name such as "\\Server\Inetpub\wwwroot\Directory."
   
   Note: If you are doing this on your local machine, you should type in the name of the directory, such as "c:\temp."
6. Select the 'Finish' button to complete generating the HTML file.

10. When all publishing files are created, A 'Windows Media On-Demand Producer' dialog box will appear stating 'Successfully saved files'. Select the 'OK' button to complete the publishing process.

Viewing the Published Video with Captions

Once you have published your work, you can view the HTML file (or webpage) that has the video embedded into it either on the network or locally.

To view the HTML file of the published video:

1. Go the network or local location of the HTML file that you specified in step 9E.
2. Open the directory (or folder) that ends with _WMCC.
3. Find the HTML file, which is normally named 'default.htm.'
4. The location of the HTML file determines your next step. If running the HTML file:
   • From a network, skip to step 5.
   • From a local directory such as c:\temp, make changes to the HTML file as outlined below.

   To make changes to a locally run HTML file:

   1. Open the default.htm file in a text editor such as Notepad.
   2. Go to the 'Edit' menu and select 'Find.'
   3. You will be presented with a 'Find' dialog box.
   4. In the textfield labeled 'Find what', enter the text: "c:\temp" and select the 'Find Next' button.
   5. This will direct you to a highlighted first occurrence of the text entered (c:\temp).
   6. Change the backslash of "c:\temp" to a forward slash; it should now read "c:/temp."
   7. Select the 'Find Next' button again from the 'Find' dialog box.
   8. This will direct you to a highlighted second occurrence of the text entered (c:\temp).
   9. Change the backslash of "c:\temp" to a forward slashes; it should now read "c:/temp."
   10. Select the 'Cancel' button from the 'Find' dialog box.
   11. Go to the 'File' menu and select 'Save.'
        
5. Open the HTML file with Internet Explorer and you should see the video with closed-captioning:
   • If you are running from a network; or
   • If you are running locally and have made changes to the HTML file as outlined in step 4.

   To manage the video running in Internet Explorer

   1. Right-click on the video for a menu of options to choose from:
      • 'Play/Pause' or 'Stop' causes the relative action to the video.
      • 'Volume' adjusts the audio 'Up, Down, or Mute.'
      • 'Zoom', adjusts the video to 'Full Screen.'

   To use the markers that were set:

   1. Select 'File Marker'; this opens 'File Marker' dialog box.
   2. Select the desired marker from the drop down list of markers.
   3. Select the 'OK' button and the video will start at the marker selected.

The next page offers a Lab for Windows Media On-Demand Producer (WMODP) to facilitate a better understanding of the techniques involved in using this video editing software and its captioning capabilities.

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Georgia Tech Research on Accessible Distance Education (GRADE)
Center for Assistive Technology and Environmental Access (CATEA)
Georgia Institute of Technology (GT) College of Architecture (COA)
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