Date: Fri, 27 Oct 2006 14:55:13 -0500 From: "Rick C. Petty" <rick-freebsd@kiwi-computer.com> To: usleepless@gmail.com Cc: freebsd-multimedia@freebsd.org Subject: Re: svideo pvr150 Message-ID: <20061027195513.GA32242@keira.kiwi-computer.com> In-Reply-To: <c39ec84c0610262326k6a033a4dg9b17b9398acdfca4@mail.gmail.com> References: <20061026144108.78395.qmail@web81206.mail.mud.yahoo.com> <c39ec84c0610260833o2686a78cqba0994356e550625@mail.gmail.com> <1d3ed48c0610262241g400c540em42d4617e1fc493e3@mail.gmail.com> <c39ec84c0610262326k6a033a4dg9b17b9398acdfca4@mail.gmail.com>
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On Fri, Oct 27, 2006 at 08:26:39AM +0200, usleepless@gmail.com wrote: > > On 10/27/06, Kevin Downey <redchin@gmail.com> wrote: > >the svideo on my pvr150 works fine if I run: > >pvr250-setchannel -a on -c > > pardon my ignorance: what is the difference between svideo and composite? I wasn't sure if you really needed this answered, but I'll state it here in case others don't know. S-video just separates the intensity from the color signals (much like how TV is broadcast), using two pairs of wires. Composite just combines both signals into a single pair of wires. The reason for separation is that the intensity (luminance) signal contains more information (bandwidth) and that the color (chrominance) signal overlaps some of this signal, therefore if the signals are physically separated, the luminance signal will be cleaner. At least, that's the theory. =) -- Rick C. Petty
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