document.querySelector("video").playbackRate = 0.75

2022年8月25日 — YouTube currently supports watching at 0.25x, 0.5x, 0.75x, Normal (the default), 1.25x, 1.5x, 1.75x, and 2x. As you can imagine, most people ...

2023年10月18日 — The player on YouTube™ let's you change the speed to 0.25x, 0.5x, 0.75x, 1x, 1.25x, 1.5x, 1.75x, and 2.0x the normal speed. This extension ...

2024年1月5日 — Speed up, slow down, advance and rewind HTML5 audio/video with shortcuts. ... It will help you optimize your video viewing by allowing you to make ...

Enter the total length of the video in hours, minutes, and seconds. Specify the playback speed for which you want to calculate the total time (e.g. 2, 1.75, 1.5 ...

2020年8月1日 — Or in other words, the time it takes to watch a video is reduced to (1/1.75)=57% of normal time, i.e. a 60 second long video will be shown to ...

2015年12月1日 — YouTube's playback speed selections allow viewers to adjust the speed of the video to their preference. Some people may prefer to watch videos ...

2022年2月21日 — I watch YouTube videos and lecture videos a lot and I always play them at 1.5-1.75x. I feel like people narrating videos talk way too slow ...

2020年12月15日 — depends, if im watching something like a game with commentary, for entertainment, then no. If its informative, then yes.

2022年8月26日 — “YouTube currently supports watching at 0.25x, 0.5x, 0.75x, Normal (the default), 1.25x, 1.5x, 1.75x, and 2x. ... speed up content more than 85% ...