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I need a tool that allowed me to make smooth transitions between videos. Windows Movie Maker doesn't allow that as far as I know.

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up vote 2 down vote accepted

I use AviSynth (but that is not interactive, programmer oriented). Anyway, Movie Maker allows fading, I believe.

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Since you posted here I'm learning AviSynth. It's seems a bit difficult to crossfade. I think I will have to: 1) Cut both clips in 2 pieces, 2) fade one piece of each clip, 3) layer the faded pieces together and 4) concatenate the 3 resulting clips. – Jader Dias Apr 10 '11 at 16:37
    
Do you know where can I find AviSynth help forums? Doom9 requires 5 days of registration before posting. – Jader Dias Apr 10 '11 at 16:37
1  
It's more simple, look the Dissolve function avisynth.org/mediawiki/Dissolve – leonbloy Apr 10 '11 at 23:54

You can do cross-fades with Windows Movie Maker.

In timeline mode drag the following clip onto the previous clip to make a cross-fade between them. The further you drag it the smoother the transition is.

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It seems very limited and counter intuitive in the latest version. – Jader Dias Mar 27 '11 at 18:07

In Adobe After Effects CS5 it's pretty easy.

  1. Put video 1 in a layer of your composition
  2. Put video 2 in a layer below that
  3. Expand video 1 layer details
  4. Click in the stopwatch symbol right next the Opacity setting
  5. Set the opacity to 100% for a given point in time
  6. Select another point in time
  7. Set the opacity to 0%

You can do the same to audio. Use 0 db instead of 100% and -40db instead of 0%

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