[mythtv-users] Is it possible to get good TV quality video out of a monitor?

Adrian Byng-Clarke adrianbc at MIT.EDU
Thu Mar 25 07:23:32 EST 2004


Is it actually possible to get TV-like image quality out a (computer) video
monitor? Or is there something about these monitors that makes this
impossible.

y plan was to move onto setting up the Xbox (connected to a TV) as a front
end once things were pretty good on the server. At this point, I'm wondering
if the problems I'm having are inherent to CRT monitors or if something
still isn't right with my recordings. 

For the past several days I have been working on getting my myth box up and
running. So far, I think that I am pretty happy with the backend setup.
However, when I try to watch recordings on my CRT monitor, they seem a
slightly fuzzy and the colors or a bit off. Occasionally I'll see some
motion related banding or artifacts  I've tried playing around with
different filters on the playback end: kerneldeint (or just the regular
deinterlace video setting), quickdnr, denoise3d etc...with or without
parameters. There are little differences but it still doesn't look like TV. 

TV seems pretty good despite the fairly low resolution. 

I have a PVR 250 with the latest drivers. I'm pretty secure with the setup
on this end. As far 
as I know, there really isn't a whole lot I can try on this end in terms of
filtering since this uses hardware encoding. My recording profile is
supposed to be DVD quality at 720x480(I know, this exceeds the broadcast
output) and 12000-16000 bit rates. Still the picture looks blah on my
monitor despite the 5 gig per hour file size.

On the output side (which is the same machine), I'm using a Nvidia FX 5200
with 128 MB connected to a 19in Viewsonic CRT Monitor. I've got the latest
nvidia drivers. I'm running my display at 800x600 which I understand to be
myth stock. As mentioned above, I have tried to use different several
different filters in different combinations. I have experimented with and
without interlacing (kernel which my proc supports and regular). I have also
FTPd the large mpeg files to windows systems just to see if this was a
problem with my nvidia setup. 

I have an Athlon 1.3 GHz and 640 MB of RAM which should be adequate to the
task.

Any insight would be helpful. All I want to do is match Tivo and broadcast
quality.

Adrian




More information about the mythtv-users mailing list