Re: Difference in luma-chroma delay of C64/C128 compared to standard S-video

Date: Sat, 2 Sep 2017 13:04:45 +0200
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> On 2017-09-02, at 03:58, Mia Magnusson <> wrote:
> But that only says how the timing should be on Y/C, not on composite.

As I wrote before - I highly doubt there should be any timing difference between the two. I never saw anyone (before) saying that summing the two should also change their relation in time domain. When you decode/demodulate the two, you have to do it differently. It's the responsibility of the receiving end to do this correctly. Therefore, most probably the different delays in your equipment come from different signal paths. But to be sure I'll try to dig the Fluke out and put both signals on the scope.

> We can assume that C64/C128 uses "composite" timing for Y/C, as the Y
> and C signals is basically combined with about the same timing for
> both. And the composite signal of a PAL C64 is imho really good; I've
> never seen any timing errors there.

My bet remains on the fact that your receiving equipment handles them differently and has better luck with composite.

SD! -

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Received on 2017-09-02 12:00:02

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