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<div class="moz-cite-prefix">On 10/13/2014 8:49 PM, Yippee
Three-eight wrote:<br>
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<div id="yui_3_16_0_1_1413246067860_11519" dir="ltr">I've
finally gotten my Ceton InfiniTV 4 PCie working on Mythbuntu.
<YAY!> Anyway, I've set up a bunch of shows to record,
all of them HD. Many of those shows record just fine.
However, I'm a racing fan, and every race I've recorded so far
has been of really poor quality except one.<br>
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<div id="yui_3_16_0_1_1413246067860_11574" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11520" dir="ltr">All of
those recordings show up with a yellow border. I think that
means the recording is damaged from what I've read. When I
watch the recording, every time a scene changes, the screen
gets very blocky (macroblocking?) and the audio cuts out, then
it will return to a beautiful recording for a moment until the
camera changes, then it repeats. It gets worse and worse as
the show goes. I haven't let it run, but I have noticed that
the file size is very small. For example, a normal TV show
recorded for 1 hour at 5.xx Gb. A formula 1 race (3 hours)
recorded at 0.5 Gb.</div>
<div id="yui_3_16_0_1_1413246067860_11521" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11522" dir="ltr">I've also
had some problems with BBC America. Some recordings are
great. Some show up as yellow like the races. Of those, some
just hang the frontend. Others come back with a message
saying the file is missing.<br>
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<div id="yui_3_16_0_1_1413246067860_11587" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11523" dir="ltr">The one
race recording I recorded without problem was a NASCAR race
that was not scheduled to record, but I turned it on in Live
TV. It looked great, so I went back to the program guide and
tried recording it. It recorded fine. As I said, these shows
are all HD.</div>
<div id="yui_3_16_0_1_1413246067860_11563" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11524" dir="ltr"> Initially,
I was unable to record anything when I set up the box. I was
getting buffer errors. I found that my network was running at
10Mb/s. I fixed that so it's running at 1000MB/s, but I still
have some Cat5 (not 5e) cable in the walls.</div>
<div id="yui_3_16_0_1_1413246067860_11525" dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1413246067860_11586" dir="ltr">I looked at
the channels that I've recorded on and here's what I got for
signal strength and S/N ratio:</div>
<div id="yui_3_16_0_1_1413246067860_11526" dir="ltr">TNTHD -
always good: Signal Strength - 3.8 dBmV, Signal to Noise
Ratio - 32.6 dB</div>
<div id="yui_3_16_0_1_1413246067860_11527" dir="ltr">WMAQHD -
always good: Signal Strength - 4.1 dBmV, Signal to Noise
Ratio - 33.4 dB</div>
<div id="yui_3_16_0_1_1413246067860_11528" dir="ltr">WBBMHD -
always good: Signal Strength - 5.9 dBmV, Signal to Noise
Ratio - 34.6 dB<br>
</div>
<div id="yui_3_16_0_1_1413246067860_11529" dir="ltr">BBCAHD -
sometimes good recordings, other times not: Signal Strength:
2.3 dBmV, Signal to Noise Ratio: 34.1 dB</div>
<div id="yui_3_16_0_1_1413246067860_11530" dir="ltr">NBCS1HD -
always bad: Signal Strength - 3.9 dBmV, Signal to Noise Ratio
- 34.8 dB</div>
<div id="yui_3_16_0_1_1413246067860_11531" dir="ltr">FS1HD -
always bad: Signal Strength - 3.5 dBmV, Signal to Noise Ratio
- 32.1 dB</div>
<div id="yui_3_16_0_1_1413246067860_11532" dir="ltr"><br>
</div>
<div id="yui_3_16_0_1_1413246067860_11533" dir="ltr">Since it
seems like a channel thing (higher channels have problems,
lower channels don't), I figured I'd look at improving my
signal strength. I've had a Motorola 1-2 amplified splitter
(<a class="moz-txt-link-freetext" href="http://www.amazon.com/Motorola-Signal-Booster-BDA-S2-Amplifier/dp/B0017I1PVC/ref=pd_sim_e_5?ie=UTF8&refRID=0REJCWJTGHQ0WF945342">http://www.amazon.com/Motorola-Signal-Booster-BDA-S2-Amplifier/dp/B0017I1PVC/ref=pd_sim_e_5?ie=UTF8&refRID=0REJCWJTGHQ0WF945342</a>)
on the line coming into my house for a while now. It helped a
lot as before I couldn't tune. I've got one of those lines
going to my old STB, and the other going to a 1-2 splitter.
From the splitter, one line goes to the cable modem, and the
other line goes to my backend's cable tuner card. I've always
read that splitters degrade signal, so I tried disconnecting
the STB and connecting one long line directly from the
Motorola amplifier to my cable card. On all channels, SS goes
up by 2 - 3 and S/N goes up a bit too. I've read that a
perfect signal strength would be 0 dBmV, but I'm wondering if
that's wrong.</div>
<div id="yui_3_16_0_1_1413246067860_11588" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11590" dir="ltr">Can anybody
offer any suggestions on what I should look at to be able to
record these shows?</div>
<div id="yui_3_16_0_1_1413246067860_11589" dir="ltr"><br>
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<div id="yui_3_16_0_1_1413246067860_11591" dir="ltr">Mike<br>
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<div id="yui_3_16_0_1_1413246067860_11534" dir="ltr"></div>
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<br>
Mike,<br>
<br>
Please don't top post. <br>
<br>
I don't think the races are being recorded in HD. Even bad quality
HD produces large files. Can you double check things to make sure
you are not recording from an SD channel or another source than you
think you are?<br>
I'm not saying you don't have an issue with splitters and poor
quality signal I just would expect to still see file sizes roughly
the same as any other HD recording.<br>
<br>
-- <br>
Jim<br>
<br>
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