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I am exporting an animation created using Manipulate in the .avi format. However the video runs very fast (I am putting it in Keynote). Its speed seems independent of how small I choose the step in Manipulate. Is there a way to control how fast the .avi will run or some other way to show the animation slower?

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If you post a working code snippet of what you are trying to export you will also probably get much better answers (see for example how this question was asked). – Ajasja May 14 '12 at 19:36
In this related question, "Exporting Animations under Duration constraints to view on an iPad", some other export methods are discussed. – Jens May 15 '12 at 2:17

The trick is using a combination of "FrameRate", an option of Export, and AutorunSequencing, an option of Manipulate. The former determines the number of frames/second of the movie whereas the latter determines how long a sweep of the control takes. With one control, that will be the length of the movie.

   Plot[Sin[k  x], {x, 0, 2 \[Pi]}], 
   {k, 1, 5}, 
   AutorunSequencing -> {{1, 10}}
 ], "FrameRate" -> 2

enter image description here

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Actually the FrameRate will not control the speed of sliderbar's velocity.Just take frame form oringnal fast video. – yode Oct 15 '15 at 2:57
I don't think you read my post correctly. – Sjoerd C. de Vries Oct 15 '15 at 5:54

The option you need is "FrameRate". It's not even necessary to create a list of graphics objects first, as per Sjored's answer.

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You can Export a Manipulate as movie without creating an array. Try Export["output.avi", Manipulate[Plot[Sin[k x], {x, 0, 2 \[Pi]}], {k, 1, 5}]] – Sjoerd C. de Vries May 14 '12 at 19:44
@SjoerdC.deVries: but you can't control the speed of the movie that way afaik. – Heike May 14 '12 at 19:46
@heike please see my answer – Sjoerd C. de Vries May 14 '12 at 20:06
@SjoerdC.deVries I stand corrected – Heike May 14 '12 at 20:21
@SjoerdC.deVries Me too:) – Ajasja May 14 '12 at 20:30

I've found that giving the option "AnimationDuration"-> (seconds) in the Export function gives better results generally.

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Please elaborate on your answer. For instance, in what sense does "AnimationDuration" give better results? – bbgodfrey Oct 14 '15 at 14:50
@bbgodfrey Rather than reducing the framerate, it gives a longer animation at the same framretae, making it smoother. – RationalAsh Oct 16 '15 at 8:38

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