[mythtv-users] Re: pvr-150 image looks "soft"

[Steve Adeff]

On Thursday 08 December 2005 10:03, Steve Adeff wrote:
> On Thursday 08 December 2005 01:26, Paul Andreassen wrote:
> > On Thu, 8 Dec 2005 11:58 am, Mike Frisch wrote:
> > > On 7-Dec-05, at 7:13 PM, Steve Hodge wrote:
> > > > On 12/8/05, Steve Adeff <adeffs at gmail.com> wrote:
> > > >> like a smoothing filter is being used. it looks just a tad softer
> > > >> than the
> > > >> source. I also notice that during scenes with movement it looks as
> > > >> though the
> > > >> frame rate was dropping by 5-10.
> > > >>
> > > >> so are there any "secret" settings I can look for or anything?
> > > >
> > > > A friend of mine had some success using the nvidia-settings sharpness
> > > > adjustment. So if you've got a nVidia card that might be worth a try.
> > >
> > > What if I'm using an ATI card?  :)
> > >
> > > I also mentioned the softness of the picture with the PVR-250.  I
> > > turned off the DNR which seems to have made a noticeable improvement
> > > in picture quality but did nothing for the sharpness.  There are some
> > > MPEG-2 tuning parameters left but I am unsure what they do.
> > >
> > > Mike.
> >
> > Have you tried increasing the bitrate?  Go nuts and see if it makes a
> > difference.  I use 6400/8000 which is much better than the analog signal
> > out of a digital satellite set top box.
> >
> > Use 720x576 and Stream Type: 'DVD-Special 2' in case you ever what to put
> > it on a dvd.
> >
> > On every boot do a 'ivtvctl -c dnr_temporal=0' to turn off temporal
> > filtering.
> >
> > One other thing I did was turn up the contrast and colour by 5%.  While
> > using Live TV on the PVR-x50, press 'g' for the recording controls.
> >
> > Paul
>
> well, I've got my bitrate at 6000000/8000000 already. I'm using stream type
> DVD-Special 2 already. I used the temporal setting from the previous person
> that posted it.
>
> BUT your comment about contrast and colour got me thinking. so I searched
> google and found:
> http://ivtvdriver.org/index.php/Ivtvctl
>
> which is nice for us to have.
>
> then I noticed the brightness was all the way up. well, every stereophile
> knows the first thing you do when you go tv shopping at a store is go into
> the menu and turn the brightness and contrast down on the display TV's.
> Stores always turn them all the way up to make the TV look brighter, and in
> the eyes of those that don't know, "better". What it actually does is
> destroy the image quality. the picture will get blury amongst other things.
> so changing the brightness down to 63 seems to have fixed the softness
> problem I had. Its not perfect, but now I can play with it.
>
> I do like being able to see the image all of a sudden shift brightness when
> I do this though, kinda cool.
>
> anyway. I'm gunna play around with the settings ivtvctl allows to change.
> I'll post my results for others to compare/argue with.

ok, everytime I change the channel the brightness/contrast settings reset. how 
do I store the settings in MythTV so they don't change?

-- 
Steve