[mythtv-users] Image quality of HD3000 for OTA sources

Mudit Wahal mwahal at gmail.com
Thu Jun 9 22:56:54 UTC 2005

I've a sempron 3000+, 512mb ddr, geforce2 mx440 card and HD3000 card.
I can playback fine without stuttering using the nvidia 7174 driver
with about 80-90% cpu busy. I can play both 720p and 1080i. Though
1080i has more cpu usage.

You didnt say what video card do you have on the intel pc. That really
depends on the processing of the HD. Nvidia drivers do offload mpeg2
to VGA conversion on the hardware so it does help.


On 6/9/05, Scott <catfather at donpoo.net> wrote:
> Greets -
> I have a working MythTV box that I'm going to be updating to use with
> OTA - ATSC HDTV channels. I'm looking at using the HD3000 adapter
> like everyone else. On the pchdtv.com site there is a sample HDTV
> video clip (tst.tar aka tst.ts) at the bottom of the downloads page:
> http://pchdtv.com/downloads_right_down.html
> I downloaded and played this clip on a few of my systems (Dual 2Ghz
> G5,  AMD64 3Ghz, and P4 2.8Ghz) using current mplayer and xine
> builds. In all cases the quality was shockingly bad. The most
> noticeable problems had to do with what appeared to be interlacing
> (shouldn't even be there?!) and edge artifacts like around the
> engineers head in the opening clip. The background zooming by the
> train in the second scene also showed noticeable problems with edges.
> I'm curious if this is the quality that is expected from the HD3000
> or if this is just a recording of a poor quality 480i stream that
> might have been uprezed to some HDTV format. Is anyone willing to
> post 5 - 10 second clips of HDTV streams they've captured with the
> HD3000?
> --
> Scott <catfather at donpoo.net>
> AIM: BlueCame1
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