If my VCR has Composite inputs and S-Video output can it really turn Composite to S-Video?
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In most cases yes but it won't necessarily increase quality.
All VCRs will separate composite into Y and C. This is what is recorded to tape. But the way they go about it differs.
A cheap VCR (most all VHS models) will low pass filter composite at 3MHz and notch filter 3.58 MHz* subcarrier for C. The higher luminance frequencies are discarded. A more sophisticated S-VHS model (not all) will use a comb filter to separate Y and C. This keeps higher luminance frequencies (picture detail) out to 4.5 MHz.
What is the model number if this VCR?
* 4.43 MHz for PAL.Recommends: Kiva.org - Loans that change lives.
http://www.kiva.org/about -
Well, it will be output as S-Video, in most cases, but the quality of the outgoing video still won't be as good as it would be with an S-Video source. However, if you are lucky, the incoming video will go through a comb filter that reduces the noise associated with a composite source and it will look a little better than it would otherwise.
Last edited by usually_quiet; 25th Oct 2010 at 18:17. Reason: clarity
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And in any case, it will not increase the resolution, remove the time base jitter, or reduce the static noise. It will only reduce dot crawl artifacts.
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That appears to be a VHS VCR plus DVD player combo. It probably has no comb filter on the VCR input. In many cases, these combo players only output S-Video from the DVD player. You can test this yourself. Play a tape or connect a composite source and see if video is present on the S-Video output.
Recommends: Kiva.org - Loans that change lives.
http://www.kiva.org/about
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