[mythtv-users] Digital Tuner cards WAS Re: Hauppauge Win-TV 878/9 (???)
watkinshome at gmail.com
Tue Nov 27 13:01:17 UTC 2007
On 27/11/2007, CHRIS KOTTING <ckotting at wideopenwest.com> wrote:
> On Tue, 27 Nov 2007 09:11:20 +0000, Nick Morrott wrote
> > <snip>
> > If you want to add more capture cards to your system in the future,
> > hardware capture cards (Hauppauge PVR 150/500) and digital (ATSC/DVB)
> > tuner cards - which encode video on the capture card, and demodulate
> > the RF signal into a bitstream, respectively - allow for multiple
> > additional cards with only a minimal increase in CPU load.
> Along this line, I'm looking to add Digital and HD recording capability to
> my Myth box, and I'd rather keep the additional load on the CPU low (i.e.
> I'd like to not have to upgrade the whole system if I can help it).
> Is there any available list of Digital/HD tuner cards that encode in
> hardware? I've been perusing the various manufacturer websites, and have
> seen almost no mention of this, and nothing that clearly states "hardware
> I'm guessing that it is either because they all do, or because none (that I
> have looked at) do.
AFAIK none do, no do they need to. Transmission bandwidth is too
precious to transmit an unencoded (uncompressed) stream so the signal
is encoded before transmission.
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