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Play with the setting and see where you start getting "jerky" and you'll arrive at a good setting. With Camtasia screencasts, understanding that less movement requires fewer keyframes when rendering can help IF you keep screen movement while recording to a minimum. Less keyframes mean less pixel data and lower quality motion. That's why when you pan & zoom you actually "force" a keyframe on each end to make sure the move is more fluid.Īs with everything in optimizing videos, there are trade-offs. So.more keyframes = larger file sizes (but smoother motion). This results in dramatically smaller file sizes because not all the data from every single frame is rendered.
OPTIMAL COMPUTER SETTINGS FOR CAMTASIA 9 SOFTWARE
In between, the software "interprets" the difference (the delta) in data and makes guesses as to what happened and fills in the blanks with less data. It then moves on to the next keyframe and gathers ALL of it's image data.
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For example, a video being uploaded to YouTube could be set to an aspect ratio of 1080p: 1920x1080. Every bit of image information for that frame is contained in the keyframe. For optimal use ensure that your screen settings are set to match your final video output settings. The speed at which they’re shown tricks your brain into. So if a video is captured and played back at 24fps, that means each second of video shows 24 distinct still images. It’s usually expressed as frames per second, or FPS. Tip: It is Best Practice is to leave the output settings as they were originally set up prior to. Mike is correct about adding keyframes with Pan & Zoom.there is actually more going on under the covers that makes keyframes an important concept to understand when it comes to optimizing video.ĭuring rendering, a "Keyframe" is a single frame of video where the software notes and uses ALL the pixel data. Frame rate, then, is the speed at which those images are shown, or how fast you flip through the book. The default screen to appear is the Camtasia Studio.