Changes

Old-fashioned movies, such as World War I [[newsreel]]s, were shot at a slower frame rate (such as 16 frames per second). When these are added into a modern 24 fps movie, often they are played at the same frame rate, which speeds everything up noticeably. It is possible, of course, to program a computer to play frames at a [[variable rate]], so that the old 16 fps footage would appear at normal speed, and even 24 fps movies could play at 24 frames per second, but to save money or development time, this is rarely done. It seems to be easier to convert 24 fps to 30 fps by playing one frame twice and and the next frame 3 times.  

Old-fashioned movies, such as World War I [[newsreel]]s, were shot at a slower frame rate (such as 16 frames per second). When these are added into a modern 24 fps movie, often they are played at the same frame rate, which speeds everything up noticeably. It is possible, of course, to program a computer to play frames at a [[variable rate]], so that the old 16 fps footage would appear at normal speed, and even 24 fps movies could play at 24 frames per second, but to save money or development time, this is rarely done. It seems to be easier to convert 24 fps to 30 fps by playing one frame twice and and the next frame 3 times.  

See [[Video for Windows]].

== See Also ==

 

* [[Video for Windows]]

[[Category:Media]]

[[Category:Media]]