加速，減速

Custom Video Speed for YouTube is a Safari extension that lets you have much finer and more consistent control over the playback speed of YouTube videos.

Control speed of the youtube playback using keyboard. Press '+' to increase and '-' to decrease the playback speed. [ Added functionality for the extension ...

Control speed of the youtube playback using keyboard. Press '+' to increase and '-' to decrease the playback speed.

Click ` (the grave accent key) to flick between normal and 2x speed, or ctrl + ` to play at 3x speed. Note: After initial install, you may need to reload ...

Go to a video. Hover over the player and click Settings . Click Speed. Select the speed at which you'd like the video to play. To fast forward:.

Speed up or slow down YouTube videos · Tap the video once, then tap More . · Tap Playback Speed. · Select the speed at which you'd like the video to play.

The playback speed feature allows users to speed up a YouTube video as much as 2x the normal speed, or even slow it down as low as 0.25x the normal speed. So ...

使用VEED 的線上視頻編輯器，加快或減慢播放速度。不需要安裝任何軟體。只需將YouTube 連結粘貼到URL 欄位中，從速度選項中選擇或輸入一個自定義速度！