Typically, when it comes to speed ramping, a lot of folks tend to simply separate a clip into multiple pieces and adjust the speed settings of each part individually. While this process may work to transition from normal speed to slow-motion (and vice-versa), the effect can be somewhat sudden and unpolished, with jagged stop and start motions.
Fortunately, Premiere Pro CC provides an advanced time remapping tool that could help you achieve much smoother professional-grade results. A video produced by Olufemii Tutorials shows exactly how to get the most out of the feature along the way.
First, begin by importing your clip into Premiere Pro CC and adding it to the timeline. Then right-click on the clip and head over to Show Clip Kegrframes>Time Remapping > Speed. Next, navigate to the part where you want the speed change to occur and by using the pen tool click on the control line. Now, hold down the command button and drag the line downwards to the speed of your choice.
On top of the point you selected previously, you’ll see two notches. Drag out the right notch to a desired length. This will control the smoothness and the time taken to transition from the regular speed to the newly adjusted one. You can even make tweaks to the bezier curve by manipulating the little node located at the center of the section.
To transition from the adjusted velocity back to normal speed, you basically have to repeat the steps outlined above. Select the point where you want the speed transition to occur and use the pen tool to create it.
On the right side of the point, press command then click and hold the control line until you’re at your desired speed. Adjust the notches on top of the transition point to modify the duration of the transition and fine-tune the bezier curve accordingly.
To take this technique a step further, cut the clip into different parts and change the speed of each piece individually using the Speed/Duration option after you have already utilized the time remapping tool.
This will allow you to not only enhance the overall effect but also have greater control over the speed of each part of the clip. Furthermore, you can create loops with the cuts and even intercut with different types of shots and angles to enhance your edit even further. There are countless creative possibilities, so it’s up to you how far you want to go.
Overall, speed ramping is a great technique when you want to draw viewer’s attention to a specific moment in your story and also can be another powerful editing asset that can add more dynamics to your edit. You just need to make sure that you’re doing it the right way.
[source: Olufemii Tutorials]
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