A red box indicates that this may be the case. This is a quick metric to determine if there is too much text for users to read in the time that the subtitle is on the screen. The set of created subtitles will appear in a window like the one shown below.Ĭlicking on a subtitle will let you edit it.ĬPS stands for characters per second. Repeat this process for each piece of text to display.Īs you go, you can see all created subtitles and play the video with them to ensure the timings are correct. In the large text box, enter the text for the subtitle for this timestamp.Ĭlick the green check box button to confirm this subtitle. In the subtitle box, set the time that the subtitle should start displaying and the time that it should stop displaying, in the boxes circled below. Select the video you want to add subtitles to. In the “Video” menu bar, choose “Open Video…” Using AegisubĪegisub’s site contains detailed documentation on its use, but the basic steps are as follows: Creating Subtitle FilesĪlthough there are numerous options for creating subtitle files, the recommended program is Aegisub ( ). Both contain the same data (the text to display and the timestamps corresponding to each line of text) in a slightly different format. The two subtitle file formats you are most likely to work with are. Video systems like Kaltura and Youtube use both a video file and a subtitle file to produce the subtitle experience you are used to. Generally, subtitles are stored in a separate file from the video.