... | @@ -4,7 +4,7 @@ Speed effects are different from other effects in that they alter the length of |
... | @@ -4,7 +4,7 @@ Speed effects are different from other effects in that they alter the length of |
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There are different challenges that arise with speed change.
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There are different challenges that arise with speed change.
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* When slowing down, intermediate frames are needed. This is done e.g. by [slowmoVideo](slowmovideo.granjow.net/) using optical flow.
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* When slowing down, intermediate frames are needed. This is done e.g. by [slowmoVideo](http://slowmovideo.granjow.net/) using optical flow.
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* When speeding up, motion blur may be desired to keep the image look natural
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* When speeding up, motion blur may be desired to keep the image look natural
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* Audio also changes. Is it simply stretched, whereby pitch changes as well, or should only the speed change (but not pitch) as done e.g. by [Paulstretch](http://hypermammut.sourceforge.net/paulstretch/)?
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* Audio also changes. Is it simply stretched, whereby pitch changes as well, or should only the speed change (but not pitch) as done e.g. by [Paulstretch](http://hypermammut.sourceforge.net/paulstretch/)?
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