32PF9986 Fuzziness round moving people!

[Alan111S]

Hi all

I've had my Philips for about 3 weeks now. On the whole I am over the moon with it. Anybody considering a CRT replacement should go for it!

Only one thing bothers me.... When actors are moving across the screen, there is a fuzzy halo around their image. I know this is probably the Digital Natural Motion software's fault. I have the Active Control set to Minimum. Any ideas?

 

[Alan D]

I think this has been referred to briefly here on the forum - this effect, a slight "shimmering" seems to show up on some material but not others. I have noticed it on some Sky material, but never on DVD (via DVI-DVI). I think the quality of the source has something to do with it. Oddly though only certain motion seems to have it - so a precise cause is difficult to pinpoint.

 

[Alan111S]

Alan

Yes you are right - it only happens on Sky or Terrestrial. We were watching Taggart the other night off-air and this effect was even more prevalent and there was problems with lip-sync as well. Some scenes were worse than others. The lip-sync may have been due to the amount of processing that the picture was receiving slowing down the display!

 

[colinbarber]

halo effect is due to pixel plus. Try turning it off.

Lip-sync is probably a Sky/set top box issue which is very common.

 

[jimsan]

It seems to happen when a fast moving object scans in front of a complex background. ie usually an actors head passing background hedges. I've managed to reduce this effect somehow, but I can't remember how. I'm at work, so I can't check. I'll get back later tonight. It is definitely not apparent on DVD inputs, so it's likely partially due to low bit rate broadcasts.

Oh! I remember. Try knocking off PP2 back to the Movie setting. This is still PP2 but with reduced processing. I think that helped.

Jimmy

 

[ianh64]

The halo effect may also be ringing - closely spaced repeated ghosts of a vertical or diagonal edge. Try turning the sharpness down but may also be caused by poor quality cabling.

-Ian

 

[jimsan]

The halo effect may also be ringing - closely spaced repeated ghosts of a vertical or diagonal edge. Try turning the sharpness down but may also be caused by poor quality cabling.

-Ian

I like this 'ringing' theory. Certainly keeping the sharpness down to around 2 is a good idea anyway and turning the PP2 to 'Movie' also helps. If you watch closely you'll notice that the halo effects the image on both sides of the moving object. This rules out Pixel response as that effect would 'trail' behind the object.

What causes this ghost? Could be a number of things, like the edge definition
gizmo or the 3D thingy. (You can tell I don't have the TV's manual in front of me, can't you?)

Anyway, I've managed to reduce this effect to a minimum now and I rarely notice it....Roll on HiDef!

Jimmy

 

[Alan111S]

I don't think it is 'ringing' - it is def due to processing on the TV. I think it is the Digital Natural Motion. As jimsan says, a 'head' moving against a complicated background like a 'hedge'. Spot on with that one - that is a typical scenario. The worse the input signal the more noticeable it is. The DNM is normally at 0 but when there is head against hedge type movement bounces up to 65 or something. Turning Active Control down to Min reduces it....come to think of it I'll turn Active Control off and see what happens........

 

[jimsan]

I am gradually turning off more and more of these processing functions. The active control is now either off or at minimum. The PP2 is now at Movie Plus. The DNR is all over the place depending on my source quality.

Basically the fewer gizmos you use the faster the screen reacts. This halo effect is really negligible now.

Jimmy

 

[Alan111S]

I watched Taggart last night off-air with the TV set to Movie Plus. It didn't have any Halo effect, except the rest of the picture looked slightly worse. So, basically either way, one is compromising.

On the other hand I was watching The Long Way Round on DVD last night, too. It is quite weird watching a documentary off DVD! And the picture was just excellent, in PP2 with Active Control Minimum.

Am going to leave most of this stuff enabled but back it off if it annoys me on a particular program!

Alan

 

[jimsan]

Yeah Alan! Long Way Round - excellent! I'm gonna do that sometime....just jump on the bike and head off across Russia! Maybe not.....

Anyway, you're right, you have to be a bit proactive to get the best out of these beasties..

Jimmy