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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have seen a few people with Pentium4 processor report that
they are happy with the playback of HDTV material.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I, however, have not seen a single “success” report
from an <span class=SpellE>Athlon</span> user.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Is anyone getting acceptable HDTV playback under Myth, with
an <span class=SpellE>Athlon</span> processor? <span
style='mso-spacerun:yes'> </span>If so, what speed, etc?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am personally using a 2.6 GHz Pentium4, <span
class=SpellE>overclocked</span> to 2.8GHz.<span style='mso-spacerun:yes'>
</span><span class=SpellE>HyperThreading</span> is enabled, and I have dual
channel 433 MHz memory.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>With this system, HDTV playback is pretty good.<span
style='mso-spacerun:yes'> </span>Not perfect, but very <span
class=SpellE>watchable</span>.<span style='mso-spacerun:yes'> </span>The
only time I noticed that my machine cannot keep up, is on *<b><span
style='font-weight:bold'>some</span></b>* camera pans.<span
style='mso-spacerun:yes'> </span>In those situation, I do get some *<b><span
style='font-weight:bold'>minor</span></b>* pause/skip/pause/skip type <span
class=SpellE>studdering</span>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have <span class=SpellE>XvMC</span> disabled.<span
style='mso-spacerun:yes'> </span>Enabling it results in very <span
class=SpellE>jurky</span> playback of any OSD, and does not seem to improve the
playback of the video.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>For those stations broadcasting in 1080i, enabling a <span
class=SpellE>deinterlacer</span> is a must.<span
style='mso-spacerun:yes'> </span><span class=GramE>A <span class=SpellE>deinterlacer</span>,
of course, make</span> no difference for the 720p stations.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Experimental A/V sync does not seem to make any difference
for me. <span style='mso-spacerun:yes'> </span>I am using <span
class=SpellE>nVidia’s</span> 5336 driver, so maybe Experimental A/V sync
does not work.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Extra audio buffering is required to keep the sound from <span
class=SpellE>studdering</span>.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If I enable “use video as <span class=SpellE>timebase</span>”,
I do not get any audio, and the video looks like it is running at about 90% of
full speed. <span style='mso-spacerun:yes'> </span>This would indicate to
me that my machine cannot keep up with HD streams, and yet <span class=SpellE>gkrellm</span>
never shows my CPU above 65%. <span style='mso-spacerun:yes'> </span>My
system “load” and disk activity also remain low.<span
style='mso-spacerun:yes'> </span>This all make me very curious as to why
the HD stream cannot be played at full speed without any frame skipping.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am planning on eventually building a dedicated Myth <span
class=SpellE>frontend</span>. <span style='mso-spacerun:yes'> </span>The
reason for this survey is to help me decide what hardware to go with.<span
style='mso-spacerun:yes'> </span>I am somewhat tempted to give an <span
class=SpellE>Athlon</span> a try if someone can indicate how well they work
with HD material. <span style='mso-spacerun:yes'> </span>Anyone tried an
Athlon64?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>John<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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