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Chapter 5. Playing & Refining Movies > Comparing Target Tempo with Actual Tempo

Comparing Target Tempo with Actual Tempo

If you set a fast tempo for a movie—say, anything over 30 fps—keep in mind that not every computer that plays back your movie will be able to play it at that speed. The tempo you set in the Control Panel or the tempo channel is considered the target tempo. Director will try to achieve the target tempo, but the actual playback speed may fall short when the movie includes elements that place a heavy load on the processor. (See the sidebar “Reducing Processor Load.”) Because some computers are more powerful than others, the playback speed of your movie often will vary from computer to computer.

Director’s Control Panel allows you to compare the movie’s target tempo with the actual playback tempo. Using this information, you can make whatever changes are necessary (either slowing the target tempo or simplifying the movie) to make the two numbers match. But even if the movie can achieve its target tempo on your computer, this doesn’t mean it will be able to achieve it on other computers. If you know that some of your users will be using older or slower computers, test the movie on computers similar to those as well.


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