On Tue, 29 Oct 2002 14:27:49 -0500, "AA" wrote:

>I've been using an analog capture board for some times now!
>
>I bought a DV camcorder about a month ago.
>
>I'd like to know what is the difference in the resolution of DV compared to
>analog.
>
>The DV standard capture at 720x480 and my analog capture board is at
>640x480. The aspect ratio of those 2 are not the same.
>
>If for example I want to use one of the video and use it to compose some
>sequence with the other one, do I simply need to resize the video ? I guess
>not because doing so I would deform the image ?
>
>I know there is the "image aspect ratio" and also the "pixel aspect ratio".
>Is that the difference ? Does DV as a pixel aspect ratio different than 1:1
>?
>
>Or do I need to resize the 640x480 video, thus deforming, the video sequence
>so that it will match the DV ? Or what if it is the reverse ? (Shinking
>the DV)
>
>Any other thaughts on the subject ?
>
>Any info on that matter would be appreciated!

Analogue video has a resolution of (anythingH)x480V (NTSC)
since greater bandwidth results in greater horizontal
resolution; DV can be at any horizontal resolution
also (represented in pixels, while working on it in
a computer), but when exported and displayed on a TV,
the pixels are converted to bandwidth (and the higher
the pixel count, the greater the resulting analogue
bandwidth, and resolution...). You should be able to dump
720/704/640x480 (NTSC) onto the timeline without problems,
and mix them, with correct-proportions at the analogue output...
BTW, since running into difficulties with colored edge
transitions in Premiere 6 when using rectangular pixels
to represent the 720 pixel width in the 640 square pixel
space for correct viewing proportion, I have switched
back to using square pixels for display (with the resultant
horizontal stretching of the preview picture - but not
the analogue output).