Some channels let you contribute titles, descriptions, subtitles and closed captions to their videos. They're viewable on the video watch page and by clicking on the [CC] icon in the player. Approved content is controlled by the video owner, but you can get credit for your contributions on the video.

You can submit content for an entire video or just add what you know. If you see existing content that's been added by someone else from the community, you can add the parts that are missing — every little bit helps.

If enough people have already contributed transcriptions or translations for a video, you'll be prompted to help review the content instead of adding to it.

You can see how many other people are currently working on the same translations with the contributor icon . If there are a lot of people working on a version, consider coming back later or working on another video that's been suggested for you in your Contribute tab.

Submit contributions

1. Go to the video that you want to contribute translations or transcriptions to. Note that not all videos support community contributions.
2. In the player, select the gear icon .
3. From the drop-down menu, select Subtitles/CC > Add subtitles or CC. You can also get there from under the video player by selecting ...More > Add translations.
4. Choose what you want to work on:

   Closed captions (same language as the video)

   1. Select the video's language.
   2. Play the video. When you get to the part where you want to add a caption, type your caption into the box.
   3. Repeat this process for all the audio in the video, then click Submit contribution.
   4. You'll be asked if the captions are complete or if there's still more to be done. This helps us figure out if other contributors need to pick up where you left off. Choose No - Let others keep working on them or Yes - They're ready to be reviewed.
   5. Click Submit.

   To speed up your work, you can also use these keyboard shortcuts:

   • Shift + left arrow: Seek back one second. 
   • Shift + right arrow: Seek forward one second. 
   • Shift + space: Pause or play the video.
   • Shift + enter: Add a new line.
   • Shift + down arrow: Edit next subtitle.
   • Shift + up arrow: Edit previous subtitle.
   • Enter: Add the subtitle.

   Subtitles (different language than the video)

   1. Select the language that you'd like to contribute. You can use the search bar to find languages that don't automatically show in the list.
   2. Play the video. When you get to the part where you want to add a subtitle, type your translation into the box. You can also click Auto translate to fill each line with a suggested translation from Google Translate. If you do this, make sure to review and fix each line carefully.
   3. Repeat this process for all the audio in the video, then click Submit.
   4. You'll be asked if the subtitles are complete or if there's still more to be done. This helps us figure out if other contributors need to pick up where you left off. Choose No - Let others keep working on them or Yes - They're ready to be reviewed.
   5. Click Submit.

   Note: You can't adjust the timing of the subtitles since it's automatically set based on the original closed caption timing.

   Title & description

   1. Select the Title & description tab.
   2. Enter your translation. You can also click Auto translate to fill each line with a suggested translation from Google Translate. If you do this, make sure to review and fix each line carefully.
   3. Click Submit and select whether you’d like to contribute more translations.

   You might see “locked” for the Title & descriptions tab. This is because you’re providing same language transcriptions that aren't necessary for metadata.

Your contribution may be combined with other submissions for the video until metadata, subtitles, and closed captions in that language are ready for review. Other community members will see your contribution and be able to add to or improve upon it. They won't see your name or profile information.

Help review submitted content

Once the submitted titles, descriptions, closed captions, or subtitles are completed, they go through a review process. YouTube moderates for spam and inappropriate contributions, but you may also be able to help review content. If enough people have already contributed translations for a video, you'll be prompted to help review the content instead of adding to it.

• Check for and fix typos or wrong subtitles.
• Report spam or offensive translations by clicking Report.

If you want to ask the community to make more improvements, click Needs more work.

If you're happy with the content, click Looks good to finish your review. When a submission gets enough reviews, it'll be automatically approved — or it can be approved by the owner.

Remove your contributions

You can remove your contributions so they are no longer associated with your account. This will not delete the contribution itself, as approved content is controlled by the video owner.

1. Sign in to YouTube.
2. In the top-right corner, select your Account icon > Creator Studio.
3. In the left-hand menu, go to Your Contributions.
4. Select the video and language you want to remove your contributions from.
5. Click Remove My Contribution.

If you want to keep a record of your contribution for which you’re credited, but simply prefer not to be credited any longer, you can remove credits.

* Nguồn: Youtube