Speed Control Strip

Speed Control

The method used to adjust the speed of the strip.

插值

Crossfades between frames to reduce screen tearing when the speed is slower than the original frame rate.

示例

Suppose you want to slow your strip down. You need to affect the speed of the video clip without affecting the overall frame rate. Select the clip and Add ‣ Effect ‣ Speed Control effect strip.

Choose the Multiply option in the Effect Strip panel in the Sidebar. Set the Multiply Factor to be the factor by which you want to adjust the speed. To cut the displayed speed by 50%, enter 0.5. Now, a 275-frame clip will play at half speed, and thus display only the first 137 frames.

如果您希望在显示第一个集合后以慢动作显示其余帧，请将源片段的长度加倍（因为效果片段边界由其源片段控制）。如果你使用的速度系数不是0.5，则使用以下公式：

就是这样，设置你的渲染到所有550帧动画（在这个例子中）。

关键帧帧数量。

To get even finer control over your clip timing, you can use curves! While it is possible to keyframe the Multiply factor, usually you want to keyframe the Frame number directly.

Choose the Frame Number option. You now have a Frame number field which you can keyframe. If you want the strip to animate at all you will have to insert some keyframes, otherwise it will look like a still. In most cases you will want to use the Graph editor view to set the curve interpolation to Linear since the default Bézier will rarely be what you want.

Tip

如果选择按速度因子控制关键帧，记得 ，否则修改不会生效。

You can use the speed control to change the frame rate in frames per second (fps) of a video. If you are rendering your video to a sequence set, you can effectively increase or decrease the number of individual image files created, by using a Multiply value less than or greater than one, respectively.