On Sun, January 14, 2007 8:32 am, Gus Wirth wrote:
> DJA wrote:
>> Lan Barnes wrote:
>>>
>>> So I'm thinking mysterious female black thingie is S-Video cable. Yes?
>>
>> One common implementation of S-Video interface uses a mini-DIN
>> connector. It just combines the three-cable/plug (red, yellow, white) to
>> one cable/plug. At least on my video camera.
>
> But that is NOT what S-Video does. The purpose of S-Video is to separate
> the luminance (black and white brightness) signal from the chrominance
> signal so as to get better signal transmission.
>
> The three wire scheme you are talking about is for Composite Video
> (Yellow), Right Audio channel (Red) and Left Audio channel (White).
>
> Gus
>
Interestingly enough, I actually understand this. Go figure.
Decades ago I worked as a C programmer for a little outfit that made image
analysis SW and their own NTSC capture card. They were geniuses when it
came to HW and SW, but a little business naive and undercapitalized. I
liked them a lot and earned a great deal.
Anyway, I learned more than I deserve to know about video signals and
digitizing them. I even learned the history of NTSC ("Never Twice the Same
Color") which relieved me from all my macho guilt over being unable to
tune a color TV set (it can't be done, at least in the US).
Don't know why I'm bothering you with this self-revelation ...
--
Lan Barnes
SCM Analyst Linux Guy
Tcl/Tk Enthusiast Biodiesel Brewer
--
[email protected]
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