You may come across talks that are missing the subtitles option for a specific language. This is likely because the talk you are viewing has recently been posted and our volunteer translators haven't completed the translation process yet. To learn more about about translating or volunteering to translate, please visit the Open Translation Project.
Some mobile devices don’t support subtitles. If the browser on your mobile device doesn’t have the subtitles option, you can download the TED app to watch talks with subtitles.