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Comment by tptacek | Hacker News Reader

In case this is useful to anyone else:

There's probably an easier way to do it, but if you want to get faster playback (2x is about as fast as I can comprehend this lecturer at), this line seems to do the trick:

    document.getElementById("myElement").querySelector("video").playbackRate = 2

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If you're using Chrome, there's a plugin called video speed controller which will let you set the speed of any embedded video.

Not sure if the browser playback supports it but lots of other native programs like VLC do a pitch-compensation/"time-stretching" mode that will make the faster playback easier to live with.

Pressing [ or ] in VLC changes the playback speed in 0.1x increments goes up to at least 10x

Thank you for sharing this! I can't watch a video at normal rate and if I find a video online I try to find it on Youtube to have the speed control. Now I don't need that!

    document.getElementsByTagName('video')[0].playbackRate = 2;

Not tested.

Did it not work?

Looks like many others aren't interested in easier solutions.

Here's my general-purpose speed-adjustment bookmarklet:

    javascript:void%20function(){document.querySelector(%22video%22).playbackRate=parseFloat(prompt(%22Set%20the%20playback%20rate%22))}();

And I find that about +70% is the speed I most-frequently want, so here's my one-click "x1.7":

    javascript:void%20function(){document.querySelector(%22video%22).playbackRate=1.7}();

Both of these adjust the speed of all non-iframe-embedded HTML5 video elements on the current page.

Of course, because of XSS-prevention rules, they won't help with iframe-embedded players. For that I guess you're gonna need a plugin.

`queySelector` only returns the first matching element (according to Mozilla docs).

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