Video

Video is a useful tool for communicating information. It can be more engaging than text, and allows for demonstrating how things work in action. This page looks at how to use screen capture, phone captured video, editing, and captioning tools.

I believe however, video shouldn’t be the only means for communicating information. It uses a lot of data and it’s temporal – making it harder for people to skim. I personally, avoid resources which involve watching videos.

Capture

There are multiple methods of capture available, depending on your device. Mobile phones are convenient and of ever-increasing quality. Web cams are also useful as they make it easy to have a stable position. Video specific cameras will give the best video quality, but are also expensive and often bulky.

OBS Studio

This is an open source screen capture program, which allows both recording and livestreaming using multiple inputs. So I can place a capture from my webcam over the screen. I can also crop and resize the capture, or make certain colours invisible. This would work better if I had a green screen but you can get the idea with this silly video I made here.

Editing in OpenShot

The result!

Captioning

Editing captions within YouTube

For short videos in particular, it’s easier to just work within YouTube.

On the Advanced page within YouTube’s editor, you must first select the language of the video.

A screenshot of YouTube Video Editor
Screenshot of subtitle location

Where captions are available, there is a link in a grey box, as here.

If there are no links here, click the UPLOAD SUBTITLES link to upload your own. The process for making new subtitles is in the next section.

Once you have a subtitle file, editing them in YouTube is fairly easy.

When playing through, hitting the enter key can break a subtitle into two screens at the point where the time slider is placed in the video.

When an incorrect subtitle is noticed, as it is in the image below, it’s a simple matter to fix.

A screenshot of an incorrect subtitle within YouTube

Simply select the text in the subtitle box, in this case it’s the word ‘Tricky”. Then type the correct word, in this case “checking”. Clicking out of the box commits the change to the video.

A screenshot of the corrected subtitle.

Once all the subtitles are edited, click ‘Save changes’ in the top right hand corner and confirm by clicking ‘Publish’.

Screenshot of the YouTube confirm to overwrite screen.

When YouTube Won’t Auto Generate

Sometimes, if your audio is distorted, YouTube won’t auto generate the captions. In those cases, I go straight to Aegisub. Firstly I import the video.

A screenshot of Aegisub after importing a video.

Then I switch the view to Audio and Subtitles only.

Screenshot showing where to select changed viewport in Aegisub

Once that is complete the interface is a lot cleaner.

Screenshot of Aegisub Audio and Subs only view.

In here, sections of audio can be selected by dragging or specifying a number in the box beside the subtitle. New subtitles are added by right clicking and selecting ‘Insert (after)’.

Screenshot of the location of Export Subtitles within Aegisub.

Once the subtitles are complete, they can be exported into various file types through the File tab.

To use the subtitles on YouTube, select the .srt (SubRip) file extension.

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