I've recently downloaded the Video Speed Controller Chrome Extension and I have to say, it changed my life.
Even if college, I would always watch lecture recordings at 1.5x or 2x speed. However, for the most part, that was confined to downloading a copy of the video file and manually changing the video speed through a video player like VLC.
With this Chrome extension, you can change the video playback speed of any HTML5 video!~
I like the introduction on their Github page:
TL;DR: faster playback translates to better engagement and retention.
Average adult reads prose text at 250 to 300 words per minute (wpm). By contrast, the average rate of speech for English speakers is ~150 wpm, with slide presentations often closer to 100 wpm. As a result, when given the choice, many viewers speed up video playback to ~1.3~1.5 its recorded rate to compensate for the difference.
Many viewers report that accelerated viewing keeps their attention longer: faster delivery keeps the viewer more engaged with the content. In fact, with a little training many end up watching videos at 2x+ the recorded speed. Some studies report that after being exposed to accelerated playback, listeners become uncomfortable if they are forced to return to normal rate of presentation.
Install and enjoy!~