[opendtv] Re: Digital vs. Analog Quality
- From: Cliff Benham <flyback1@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Tue, 08 Jul 2008 13:56:55 -0400
Craig Birkmaier wrote:
...baseband NTSC could be
far better than transmitted NTSC. True for the luminance, but not true
for the color difference signals.
I think there are several examples of wideband color difference signals
being used in NTSC. As far back as the late 1970s, baseband NTSC has
been capable of 120 lines of chroma resolution. This includes Laserdisk
and later in the early 1980s, analog component recording formats,
notably Betacam.
[Betacam]"provides a crisp, true broadcast quality product with 300
lines of horizontal luma resolution, and 120 lines chroma resolution
(versus ~30 for Betamax/VHS)." http://en.wikipedia.org/wiki/Betacam
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