On Fri, Feb 5, 2010 at 7:02 PM, Michael Robinson
<[email protected]> wrote:
> Stupid question, why do you need a gigahertz or better computer
> to run a tuner card that simply allows you to display the play
> station II's analog low definition output on your screen?  The
> play station II, if I'm not mistaken, is only a 300 mhz computer.
> I can possibly upgrade my 450 mhz PIII to 750 mhz, but that's
> the cheapest thing I can do.
>

It isn't the playback that consumes the CPU it is recording analog to disk.
It has to encode it to MPEG2 before it sticks it on the disk.  It
takes at about a 1GHZ
machine to encode a single TV stream to MPEG in real-time.  To do more than one
turner, more GHZ .

That is why a premium is paid for cards that have hardware encoders on them.

Digital TV is a different story.  It is broadcast in a MPEG2 transport
stream that
can be saved directly to disk.  No encoding to worry about.
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