[mythtv-users] Recording/live-tv video quality (aka do PVR150 encoders suck?)
myth at dermanouelian.com
Mon Jan 28 03:39:20 UTC 2008
On Jan 27, 2008, at 7:24 PM, Scott Traurig wrote:
> I finally took the plunge into some equipment that has allowed me to
> really see what is going on with respect to mythtv video quality and
> this has begged a few questions.
> Previously I had a nice but old Sony tube and used composite NTSC
> video output of the Nvidia 6xxx motherboard. It was tough to tell
> what was going on, of course. Now I have this beautiful Philips LCD
> 1080p panel that I got on sale at Costco and a DVI connection.Ubuntu
> is set to run the standard 1080p resolution through the Nvidia GPU.
> Results are as follows:
> PC stuff looks fabulous.
> Commercial DVD playback looks fabulous whether it’s 4:3, 16:9 or
> widescreen and whether it’s coming off the DVD or from an ISO file.
> Live and recorded TV using NTSC composite from my set top box into
> the PVR150 capture card looks terrible compared to the same signal
> out of the STB right into the Philips panel. I’ve got all profiles
> set to run 6Mbps/9Mbps (DVD quality) and going higher doesn’t help
> Live and recorded TV using the PVR150 tuner looks worse still.
> I can understand #4 but not necessarily #3. Clearly the decoders and
> the Nvidia hardware do a fabulous job based on the DVD output.
> However it appears that the PVR150 encoders pretty much suck. Is
> this essentially the deal? Is there a better solution for tuning/
Try using s-video on the PVR if you can.
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