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Improve usability, improve accuracy, fix links

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[![Add to Firefox](https://img.shields.io/badge/Add%20to-Firefox-orange?logo=firefox&logoColor=white)](https://addons.mozilla.org/en-US/firefox/addon/video-speed-controller-v1/) # Available for Firefox
[![Add to Firefox](https://img.shields.io/badge/Add%20to-Firefox-orange?logo=firefox&logoColor=white)](https://addons.mozilla.org//firefox/addon/speeder/)
# The science of accelerated playback # The science of accelerated playback
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**TL;DR: faster playback translates to better engagement and retention.** **TL;DR: faster playback translates to better engagement and retention.**
Average adult reads prose text at Average adult reads prose text at
[250 to 300 words per minute](http://www.paperbecause.com/PIOP/files/f7/f7bb6bc5-2c4a-466f-9ae7-b483a2c0dca4.pdf) [250 to 300 words per minute](https://web.archive.org/web/20220325065025/https://www.domtar.com/en/resources/paper-advocacy/paperbecause)
(wpm). By contrast, the average rate of speech for English speakers is ~150 wpm, (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 with slide presentations often closer to 100 wpm. As a result, when given the
choice, many viewers choice, many viewers
[speed up video playback to ~1.3\~1.5 its recorded rate](http://research.microsoft.com/en-us/um/redmond/groups/coet/compression/chi99/paper.pdf) [speed up video playback to ~1.3\~1.5 its recorded rate](https://research.microsoft.com/en-us/um/redmond/groups/coet/compression/chi99/paper.pdf)
to compensate for the difference. to compensate for the difference.
Many viewers report that Many viewers report that
[accelerated viewing keeps their attention longer](http://www.enounce.com/docs/BYUPaper020319.pdf): [accelerated viewing keeps their attention longer](https://www.enounce.com/docs/BYUPaper020319.pdf):
faster delivery keeps the viewer more engaged with the content. In fact, with a 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 little training many end up watching videos at 2x+ the recorded speed. Some
studies report that after being exposed to accelerated playback, studies report that after being exposed to accelerated playback,
[listeners become uncomfortable](http://alumni.media.mit.edu/~barons/html/avios92.html#beasleyalteredspeech) [listeners become uncomfortable](https://web.archive.org/web/20230912173120/http://alumni.media.mit.edu/~barons/html/avios92.html)
if they are forced to return to normal rate of presentation. if they are forced to return to normal rate of presentation.
## Faster HTML5 Video ## Faster HTML5 Video
@@ -36,7 +36,7 @@ last point to listen to it a few more times.
#### *Install [Chrome](https://chrome.google.com/webstore/detail/video-speed-controller/nffaoalbilbmmfgbnbgppjihopabppdk) or [Firefox](https://addons.mozilla.org/en-us/firefox/addon/videospeed/) Extension* #### *Install [Chrome](https://chrome.google.com/webstore/detail/video-speed-controller/nffaoalbilbmmfgbnbgppjihopabppdk) or [Firefox](https://addons.mozilla.org/en-us/firefox/addon/videospeed/) Extension*
\*\* Once the extension is installed simply navigate to any page that offers \*\* Once the extension is installed simply navigate to any page that offers
HTML5 video ([example](http://www.youtube.com/watch?v=E9FxNzv1Tr8)), and you'll HTML5 video ([example](https://www.youtube.com/watch?v=E9FxNzv1Tr8)), and you'll
see a speed indicator in top left corner. Hover over the indicator to reveal the see a speed indicator in top left corner. Hover over the indicator to reveal the
controls to accelerate, slowdown, and quickly rewind or advance the video. Or, controls to accelerate, slowdown, and quickly rewind or advance the video. Or,
even better, simply use your keyboard: even better, simply use your keyboard:
@@ -74,13 +74,11 @@ and inspect the menu: if it mentions flash, then that's the issue. That said,
most sites will fallback to HTML5 if they detect that Flash is not available. most sites will fallback to HTML5 if they detect that Flash is not available.
You can try manually disabling Flash from the browser. You can try manually disabling Flash from the browser.
**What is this fork of `igrigorik/videospeed` all about?** This fork of the **What is this fork all about?** This is a fork of
[`igrigorik/videospeed`](https://github.com/igrigorik/videospeed) repository [CodeBicycle's Video Speed Controller extension for Firefox](https://github.com/codebicycle/videospeed)
is a port of [`igrigorik`](https://github.com/igrigorik)'s videospeed Chrome which is a fork of [Igrigorik's Video Speed Controller extension for Chromium](https://github.com/igrigorik/videospeed).
add-on for Firefox. This fork modifies the Chrome add-on code so that it works
in Firefox. This repo is the code behind the [Firefox Extension](https://addons.mozilla.org/en-US/firefox/addon/video-speed-controller-v1/) The goal of this fork is fix bugs in the upstream code as well as add new features.
whereas the [`igrigorik/videospeed`](https://github.com/igrigorik/videospeed)
repository contains the code behind the [Chrome Extension](https://chrome.google.com/webstore/detail/video-speed-controller/nffaoalbilbmmfgbnbgppjihopabppdk).
### License ### License