On 10/13/05, <b class="gmail_sendername">Joe Votour</b> <<a href="mailto:joevph@yahoo.com">joevph@yahoo.com</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I've recorded three SD streams off of analog cable<br>using a PVR-350 and a PVR-500, while watching a fourth<br>(or sometimes one of the three). The CPU usage for<br>the recording is very low because of the hardware<br>MPEG-2 encoders in the capture cards. No loss in
<br>stream quality.<br><br>The question that you ask is very vague, because you<br>don't mention what capture hardware you have. An<br>analog BT8x8 card is much more CPU intensive than a<br>PVR-x50, for instance.<br><br>
I don't think that you can capture an HD stream<br>(though I may be wrong on this). There are no HD<br>capture cards that I'm aware of (the bandwidth for HD<br>is insanely huge), and the set-top boxes that support<br>Firewire output downsample the output (how far, I
<br>don't know).<br><br> Joe<br><br> <a href="mailto:Anand_Inala@Dell.com">Anand_Inala@Dell.com</a> wrote:<br><br>> My apologies if this has been asked and answered<br>> already, but I searched<br>> the archives and couldn't find the answer.
<br>><br>> What is the most number of streams anyone on the<br>> list has simultaneously<br>> recorded without problem? I assume recording 2<br>> streams while watching a<br>> third has been done, but has it been done with no
<br>> loss in quality, etc?<br>> How about 3 streams? HD + an analog stream? I'd<br>> like to get an idea of<br>> what my limitations and potentials are before I get<br>> too deep in my<br>> current project.
<br>><br>> Andy</blockquote><div><br>
I think what might be more of concern here is how much you can write to disk before your buffers overflow.<br>
</div></div><br>-- <br>Thanks,<br>Devan Lippman <devan at lippman dot net>