YouTube - Editing Captions
1. Go to the Video Manager on your Youtube channel and find the video you would like to edit.
2. Click the down arrow next to the video and select Subtitles and CC.
3. Click the option called English (Automatic).
4. Click Edit in the top right-hand corner.
5. You can now edit your captions and adjust the timing.
6. Once you have finished editing, click Publish Edits.