[mythtv-users] Video Quality

Adam Biskobing tv at badmoon.com
Thu Mar 11 16:50:18 EST 2004

I use a PVR-250 and I don't notice any degredation in quality.  Getting
replays of a great pass makes mythtv worth it.

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org 
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Damon Haas
> Sent: Thursday, March 11, 2004 7:49 AM
> To: Discussion about mythtv
> Subject: RE: [mythtv-users] Video Quality
> On Thu, 2004-03-11 at 12:28, Alan Snyder wrote:
> > 
> > With a dirt-cheap bt878 capture card, generic
> > GEForce-2 video card, and mid-90's 27" TV, with myth doing 
> MPEG-4 at 
> > 640x480, 2200kbps, the difference between live TV through myth and 
> > live TV off the cable is noticable but not bothersome.  The CNN 
> > "crawl" is a little jumpy.  There's some loss of detail in the 
> > highlights (I think that might be a bt878 chipset issue).  Up close 
> > (closer than I watch), some blockiness is present 
> (replacing the less 
> > noticable noise in an analog picture).  Football can seem harder to 
> > follow, probably because of the limitations of the compression 
> > settings to handle the frame-to-frame changes in content.  But 
> > overall, the difference is similar to the difference between a good 
> > cable signal and an "OK" cable signal.  I do notice that for certain
> > channels where the cable signal is weaker, the noise in the 
> > original results in more artifacts in the processed video.
> > This is most likely because the compression scheme needs to
> > deal with all that extra "information."
> Before I go through and do this I need to be clear on this 
> one- is watching sports not very good through mythtv?  If I 
> am watching hockey or football on a large TV, having the 
> ability to pause live TV would cause large amounts of 
> distortion?  How noticeable is the difference between a 
> recording and live TV when watching sports?  Thanks for any 
> information.

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