There are several different ways to change the speed of a video file in DaVinci Resolve 12.5<\/a><\/strong> \u2014 just as there are several ways to change how Resolve interprets the preceding frame when slowed down.<\/p>\n For example, you could decrease the speed of an entire clip and set the frame interpolation to “Nearest<\/strong>,” which duplicates the frames. Alternatively, you could reduce the speed of a clip for only a portion of its duration and choose “Optical Flow<\/strong>.” This will generate new frames based on the information of the previous and following frames to create a realistic slow-motion effect<\/strong> \u2014 as if the original shot was filmed at a high frame rate.<\/p>\n Let’s have a look at creating simple speed change effects<\/strong>, including\u00a0increases and decreases in speed, as well as freezing\u00a0a clip altogether.<\/p>\n There are two methods of doing this:<\/p>\n Both methods will bring up the following pop-up box.<\/p>\n Here, we can increase or decrease our speed<\/strong> by percentage. Additionally, if your footage is currently locked in at 120fps and you haven’t yet\u00a0converted it down to 24fps, you can change the fps\u00a0setting if necessary.<\/p>\n One feature that I do miss dearly in Adobe Premiere Pro<\/a> is the camera still button. The button saves a still to the desktop<\/strong>, which I found incredibly useful when I was working on software videos, and I needed the screen capture to pause while I continued explaining something. The freeze frame function<\/strong> in Resolve’s pop-up box is a good alternative. Unlike the snapshot option in Premiere, which creates a separate still file, the freeze frame function will freeze the entire selected clip, displaying the still where the play head currently is. Therefore, you will need to create a cut where you want to freeze the frame.<\/p>\n If checked, the ripple sequence will push or pull all of the preceding clips to accommodate the change in the clip duration due to the speed change. These are all very basic speed change effects<\/strong>, but you have\u00a0a lot of control with an efficient display to achieve your desired effect. If you have worked with Premiere Pro, you’ll likely be familiar with the layout of the pop-up box.<\/p>\n You can also create quite complex speed changes within the Resolve edit interface by using the retime control<\/strong>. For example, you could increase a clip’s speed by 200 percent, then reverse it and then play forward at 50 percent \u2014 all within the same clip, with only one effect applied. You can activate the retime control by selecting a clip and choosing Retime Clip<\/strong>. Alternatively, keyboard shortcut aficionados can select the clip and hit CMD-R<\/strong>\/CTRL-R<\/strong>.<\/p>\n Here, you will see one of the visual differences between Premiere and Resolve\u00a0\u2014 the visualization of the speed change<\/strong> on the clip itself. \u00a0You can see that arrows appear on the top of the clip when you have entered retime. The yellow arrows indicate that the clip has been slowed down, and the compact blue arrows suggest that the clip has been sped up. You also see\u00a0the degree of increase or decrease to the\u00a0clip’s speed<\/strong>.\u00a0However, I find that if you have many layers with hundreds of different clips, the visualization of the speed change can help find you the clip more easily.<\/p>\n Like the rate stretch tool in Premiere Pro, you can now expand the clip manually by simply moving your cursor over\u00a0the clip in the retime bar (where it says Speed Change). If you try to rate stretch your clip<\/strong> by dragging the sides, it will just expand or decrease the clip’s natural duration. It is important to note that if you are in Normal Edit Mode<\/strong> (Keyboard shortcut A), you will trim the neighboring media if your speed duration increases your clip size. If you are in Trim Edit Mode<\/strong> (T on the keyboard), you will ripple the timeline.<\/p>\n At the bottom of the clip, you can also find a small, black drop-down triangle. By clicking on this, you open\u00a0the retime\u00a0speed menu<\/strong>. Here, you see the same options from the clip speed menu, plus some extra features. The difference here is that the operations act differently. They operate in an advanced fashion, which isn’t as simple as just changing the entire clip speed to 150 percent.<\/p>\n For example, if we choose Freeze Frame<\/strong>, which would freeze the entire clip when using the standard speed change settings, we get\u00a0a section of the clip that we can now freeze for a specific amount of time. This, in essence, is closer to the still function in Premiere. Remember that using\u00a0the Selection Tool<\/strong> or Trim Tool<\/strong> will completely change how the preceding clips react to the frozen frame’s extended\u00a0duration.<\/p>\nThe Simple Stuff<\/strong><\/h3>\n
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![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Change-Clip-Speed-Resolve-.jpg\" "\\"Speed")
<\/a><\/p>\nAdvanced Speed Changes<\/strong><\/h3>\n
![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Retime.jpg\" "\\"Speed")
<\/a><\/p>\n![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Resolve-Speed-Change-Visual.jpg\" "\\"Speed")
<\/a><\/p>\n![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Trim-Edit-Mode-Resolve.jpg\" "\\"Speed")
<\/a><\/p>\n![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Dropdown-Menu.jpg\" "\\"Speed")
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![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Speed-Ramp.jpg\" "\\"Speed")
<\/a><\/p>\n![\"Speed](\"https:\/\/www.premiumbeat.com\/blog\/wp-content\/uploads\/2016\/12\/Inspector-Frame-Interp.jpg\" "\\"Speed")
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