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| High Level HD Tuner Question http://forum.linhes.org/viewtopic.php?f=2&t=14048 |
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| Author: | Thread7 [ Mon Feb 05, 2007 10:53 am ] |
| Post subject: | High Level HD Tuner Question |
I have a Knoppmyth box with simply an NTSC tuner card. I want to upgrade to HD. The issue is I already have an ATSC/QAM box (not a PCI card but independent box) that can received the signal. It has many type of outputs on the back. The question is what do I need to run it into the Myth box? Do I still need an HDTV tuner card or is there another type of card that can accept the signal? Ie. Fancy video card with input Thanks. |
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| Author: | thornsoft [ Mon Feb 05, 2007 11:23 am ] |
| Post subject: | |
Unless the STB has FireWire, you really don't want to try to record this. I don't think you can (affordable hardware) and if you could, it takes more horsepower than you have. The video comes out of the box fully decoded, and you'd be re-encoding it. That takes too much bandwidth and processing power. You want to simply add an HD tuner (ATSC and/or QAM) to your box. The Air2PC 5000 is currently the top card, but I have even better luck with the older PCHD3000 and KWorld 110. You can find deals on the KWorld - mine was about $38, but needed a little tweaking (search the forums here) to get it working on R5E50. These tuners take the already-encoded stream and dump it to disk. This only takes 5% CPU load to do. No encoding necessary. The hard part is in the playback, where you need a 3000Ghz equivalent processor and nVidia 5200 or better. See the writeup on nVidia fixes for R5E50 by mrfarenheight for a fix that helps with xorg performance. |
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| Author: | Martian [ Mon Feb 05, 2007 12:30 pm ] |
| Post subject: | |
thornsoft wrote: ...you need a 3000Ghz equivalent processor ...
3000GHz? Is that like 1.21 Gigawatts? /backtothefuture Sorry Thornsoft, couldn't resist. Martian |
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| Author: | thornsoft [ Mon Feb 05, 2007 1:16 pm ] |
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Martian wrote: 3000GHz? Is that like 1.21 Gigawatts? /backtothefuture
Great Scott! My kids just discovered that series, and that's all I've been hearing for weeks now. My 8-year-old is getting the trilogy for his birthday - it's on its way from Amazon.com right now. Anyway, yes. 3.0 Ghz equivalent, such as AMD64 3200, seems to be the baseline for simultaneous HD record/playback. |
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