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Frame rate issue

Frame rate issue

A fundamental difference between Adobe After Effects and a program such as Adobe Photoshop is that in addition to composing an image, images in Adobe After Effects can change over time. To show this animation, time must be broken up into individual frames that are shown in order. The speed at which these frames are played back is known as the frame rate. The choice of a frame rate depends on the medium where the final output will be displayed.

In general, the higher the frame rate, the smoother are the changes and motion you create. However, you usually cannot pick an arbitrary rate. Video, film, and multimedia all tend to have different inherent frame rates. Video itself has different frame rates, depending on the format used. PAL (Phase Alternation Line) format video, as commonly used in Europe, has a frame rate of 25 fps (frames per second). NTSC (National Television Standards Committee) color video, the standard in the United States and Japan, has a frame rate of 29.97 fps. Many refer to this as 30 fps, since it is more convenient to say and to deal with than 29.97 (and because black-and-white NTSC used to run at 30 fps).


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