Add closed caption, subtitles and transcripts to youtube videos

I need to add some captioning to some videos. Here is the beef, from the docs at the tube.

A caption file contains both the text and information about when each line of text should be displayed.

A transcript file, on the other hand, just contains the text of what was said in the video. If the video’s in English, Spanish, Japanese or Korean, YouTube can use speech processing algorithms to determine when the words in a transcript should be displayed

 

In order to download auto-captions for a video, you must be the video owner. If this is true:

An .sbv file is just a text file with timecode information. You can use it in a caption tool, or you can open it with a regular text editor.

• Sign into your account
• On the Captions and Subtitles pane, look for the track called English: Machine Transcription. Click the Download button next to that track.
• YouTube will then save a file called captions.sbv to your desktop.

To add captions or subtitles to one of your videos, you’ll need to have transcript or caption files with the captions/subtitles in them. A transcript file must be saved as a plain text file without any special characters like smartquotes or emdashes.

YouTube uses experimental speech recognition technology to provide automatic timing for your English transcript. Automatic timing creates a caption file that you can download. Short videos with good sound quality and clear spoken English synchronize best.

Here are some other things you can do to help get the best automatic timing results for your transcripts:

• Identify long pauses (3 seconds or longer) or music in the transcript with a double line break.
• Use double line breaks anytime you want to force a caption break.

Here are some common captioning practice that help readability:

• Descriptions inside square brackets like [music] or [laughter] can help people with hearing disabilities to understand what is happening in your video.
• You can also add tags like >> at the beginning of a new line to identify speakers or change of speaker.
• Once you have the files, log into your YouTube account to upload them and:
  1. Mouse over your username located in the upper right corner of every page.
  2. Click Video Manager. You will then be directed to a page showing your uploaded videos.
  3. Find the video to which you’d like to add captions/subtitles and click the down arrow located to the right of the Edit and Insight buttons. Select the Captions and Subtitles button from the drop down menu.
  4. Click the Add New Captions or Transcript button on the right hand side of the page. You will be prompted to Browse for a file to upload.
  5. Select a caption/subtitle or transcript file to upload. If you are uploading a transcript (no timecodes), select Transcript file, otherwise, select Caption file.
  6. Select the appropriate language. If you wish, you can also enter a track name.
  7. Click the Upload File button.