Dear Ratbag
It is not the editing per se that creates larger internet video files
but the difference in image complexity between adjacent edited frames
or scenes.
Cutting from a busy city scene to a busy landscape scene, with lots
of visual elements and components puts more stress on the video &
audio compression software and hardware - requiring more data per
frame to convey the images. In comparison, a simple unedited talking
head or a shot of a barren artic landscape has less video complexity
and requires less data to convey.
However, that all may be a mute point depending on your compression
software parameters.
Usually compression software is set for a certain bandwidth - say 600
kbps. So no matter how complex your edits or scene composition, the
file size will be the same - instead, the quality of the compressed
video will change as the image varies in complexity. A single
talking head will look the sharpest while the complex city scape may
have compression artifacts and blockiness.
If you are comparing an UNEDITED and uncompressed avi video file to
an EDITED and uncompressed avi video file, the edited file may indeed
be larger. However, once run through the compression engine with same
bandwidth limits, the final file sizes should be similar.
The difference will be image quality - not size.
Is this your question or did I miss the point?
Mark
Internet Video Magazine
www.internetvideomag.com


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