Request new feature: Smoothed playback dynamic acceleration


Example :

1- set desired speed *e.g. x3

2- select starting speed *e.g. x1.5

3- % of video passed until desired speed is reach e.g. *60%

Result:

The video begins at x1.5

increases gradually as a function of time based on the duration of the video

by 60%, speed had gradually increased from 1.5x to 3x in 0.01 stepsizes.

e.g. at 60% of elapsed video duration it will be

playbackRate = x1.5 + (x3 - x1.5) * (currentTime / duration) / 0.6

This formula means that the playback rate will start at x1.5 and increase linearly as a function of the current time divided by the duration of the video until it reaches 60% of the duration, where it will reach x3.

This passive increase in cognitive load will lead to increased comprehension.

It works very well! Thanks for the extension!

Works great! Highly recommend.

i think it's the best extension. It's very usefull!!

Been looking for this solution for ages. Works as required.

Its really good, does, was it shut do.
But with Tabs in different windows it toggles automaticly after 3-4 seconds beetween the 2 windows.

Update: Wow! Fixed in a cuple of ours, i´m thrilled! author is doing a great job. Thx

This extension is great; thanks dev. I've tried similar addons on other browsers in the past but never kept them but this one works well without being annoying.

It works between say two YouTube tabs currently playing video but when I go to a third tab (not playing anything) then both other tabs start playing at the same time which is less than useful and not really as expected.

Ideally all non-active tabs should remain paused unless I specifically go back to them or give them permission to play when not active (say for radio/audio listening), otherwise I'm not sure what use the current functioning is as when trying to use a third tab it makes for hearing two tabs at once and any video continues to play unseen?

Would love to see this developed further with perhaps some preconfigured checkboxes in the options dialogue (or a permanently viewable list of useful options). For testing I have just used the first suggestion of which seems fine.

EDIT (after developer comment) - I have tried the Alt+r toggle and that seems almost as bad, adding in an extra stage to switching tabs that doesn't do anything if I switch to a non audio or video link (exceot play all audio streams at the same time - Alt+r only takes effect when I go back to the AV links and then only after clicking to the second tab from the first. There is also no visual clue as to what state Alt+r is currently in and it's easy to get in a mess in my test with three AV streams + other non-AV tabs. I will leave notes on GitHub.

EDIT 2 (After working with developer on GitHub) - increased my star rating to 5 - author is doing a great job at including my suggestions and if this all goes well it should be a 5-star add-on!!!

cool idea .. doesn't work on sites like this https://ustvgo.tv/animal-planet-live/ .. won't stop the audio when I switch tabs..

Great, thank you. Yes - 5* , while having only just installed it. But I know it's going to work - and many thanks to Martin Brinkmann @ Ghacks for the recommendation, and thanks to NDevTK for filling in this "vital" feature that actually should be fully part of Firefox anyway!