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<div><span class="gmail_quote">On 08/01/2008, <b class="gmail_sendername">Scott Traurig</b> <<a href="mailto:straurig@comcast.net">straurig@comcast.net</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"><br>Message: 21<br>Date: Tue, 8 Jan 2008 15:08:50 +0000<br>From: "Steve Smith" <<a href="mailto:st3v3.sm1th@gmail.com">
st3v3.sm1th@gmail.com</a>><br><br>On 08/01/2008, Scott Traurig <<a href="mailto:straurig@comcast.net">straurig@comcast.net</a>> wrote:<br>> Environment: Comcast Moto DCT2224 STB inputting to PVR150 via NTSC<br>
> composite, Nvidia outputting to Sony 32" NTSC CRT monitor via composite.<br>> Myth 0.21.<br>><br>> Top of the list is fixing video quality. The quality of set-up is nowhere<br>> near that achieved with the Pioneer unit. Detail is substantially lacking
<br>> and motion artifact is severe. I turned off de-interlacing since it has no<br>> meaning in my setup and this helped a little. More importantly I simply<br>> doubled the default live TV bit rate settings from
4.5 avg/6 peak to 9<br>> avg/12 peak (I left the default 720 x 480 resolution alone). This helped a<br>> lot but is things are still not as sharp as the Pioneer and a lot of<br>> motion<br>> artifact is still evident on scenes that have a lot of change.
<br>><br>> Don't be blaming it on the rest of the setup: I literally plugged the myth<br>> box in where the Pioneer used to be, same video cables and all.<br>><br>> So...<br>><br>> a) I don't care about disk space. What bit rate should I run?
<br>> b) Is this bit rate a "standard"? Shouldn't it be?<br>> c) Or am I well and truly screwed, i.e. am I limited by the intrinsic<br>> quality of the available codecs, PVR and Nvidia hardware regardless of
<br>> what<br>> bit rate I run?<br>><br>> Thanks,<br>><br>> Scott<br>><br>><br>> Scott,<br>><br>> I'm afraid my friend you are limited by the intrinsic poor quality of the<br>> TV-OUT available on most video cards including Nvidias.
<br>><br>> If you only have a PVR-150 as your input you could try adding a PVR-350<br>card<br>> and using the TV-OUT of that. The quality is much better, probably more<br>what<br>> you're used to. If you were in Europe I'd suggest using the RGB/Scart
<br>input<br>> on your TV which will put your Panasonic to shame, but alas....<br>><br>> (Another option is to use a Hauppauge Media MVP if you don't mind the less<br>> rich interface. This also has great output)
<br>><br>> Cheers<br>><br>> Steve<br>><br><br>~~~~~~~~~~~~~~~~~~~~~~~~~<br><br>Steve,<br><br>Thanks for breaking it to me gently :-)<br><br>Tell, me: if I break down and buy myself a nice plasma or LCD TV with a VGA
<br>input all my problems will be solved? In other words the video input and<br>encoding circuitry are up to snuff, but the composite output of the Nvidia<br>is second rate?<br><br>While I await your reply I am planning on going home tonight and plugging in
<br>a 19" VGA monitor I have to see what that looks like. However, I suspect<br>that even going VGA will not fix the motion artifacts? What's up with that?<br><br>Finally, I'm still looking for an answer on what the next highest "standard"
<br>bit rate settings are over and above the 4500/6000 default.<br><br>Thanks,<br><br>Scott<br><br>P.S. Brad--I've still got my Pioneer DVR (a model 520). No, you can't have<br>it :-) You *can* get grey market ones off of ebay for about the same price
<br>as a myth setup.<br><br>_______________________________________________<br>mythtv-users mailing list<br><a href="mailto:mythtv-users@mythtv.org">mythtv-users@mythtv.org</a><br><a href="http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users">
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users</a><br></blockquote></div>
<div><br>Scott,</div>
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<div>RE: The motion artifacts it could be interlacing artifacts (I don't know I can't see them!). Try enabling deinterlacing when use the monitor.</div>
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<div>RE: Checking with a monitor also try playing the files using "mplayer -vf pp=md FILE.mpg" which will play the file with a deinterlacing filter.</div>
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<div>(Note: All the files produced by a PVR-150 are interlaced, and although the SHOULD play fine without deinterlacing on your Nvidia + CRT TV, in practice this doesn't always work. Search for my posts on this...)</div>
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<div>RE: Bitrate 4500/6000 is a pretty good bitrate on a PVR-150, you could go for 9000 (which is DVD rate) but that shouldn't be necessary.</div>
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<div>You might want to post us exactly what capture settings you are using ( in recording profiles).</div>
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<div>Cheers</div>
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<div>Steve</div>