subed.el: Tweaking subtitle times

from blog Sacha Chua, | ↗ original
When subtitle times are too far off from the video or audio, people start worrying if their video has frozen or jumped ahead. It's good to keep subtitles roughly in time with the audio. For EmacsConf, we can get timing information from two places. WhisperX produces a JSON file with word data in the process of doing the speech recognition, and the...