Is this really as good as live-tv gets?!? (3 Viewers)

[MadDuke]

@Okay - The 'pixel-bar' / 'stutter-error' can't really be because of the TV - and that is my main problem at hand!

@torettes - My STB doesn't (seem to) show any symptoms from theese errors in the DVB stream! So there must be 'a way around'! (and there are others that do use DVB without problems!?! -or maybe they don't tell about them!

/MadDuke

 

[knutinh]

@Okay - The 'pixel-bar' / 'stutter-error' can't really be because of the TV - and that is my main problem at hand!

@torettes - My STB doesn't (seem to) show any symptoms from theese errors in the DVB stream! So there must be 'a way around'! (and there are others that do use DVB without problems!?! -or maybe they don't tell about them!

/MadDuke

The STB may have better error concealement than your software decoders, or your PC tuner may have worse rf/amplifier characteristics than the STB, introducing bit-errors that the STB does not see.

In my view, those errors can only stem from errors between cable/antenna and MPEG2 decoder resulting in errors in the reference frame used for prediction.

regards
Knut

 

[tourettes]

Please make a recording with MP and then use VideoReDo to remux the video file. It will report if there are any errors in the stream.

Errors are most likely caused by the tv card having a worser tuner than the setop box.

 

[MadDuke]

I have an important meeting all day tomorrow, but I will look into the 'VideoReDo' / 'remux' thing! (hope it's not too hard!)

knutinh - you mention 'rf/amplifier', does this mean there might be anything to gain from a signal-amplifier from the LMB? (these things do exist right?) - as I pointed out in my fist post, I have signal strenght&quality of 65%, is this not enough after all?

What about a 'venture' into TVEngineV3 ? (good, bad or pointless?)

/MadDuke

 

[tourettes]

I have an important meeting all day tomorrow, but I will look into the 'VideoReDo' / 'remux' thing! (hope it's not too hard!)

It's pretty simple actually. Just open the video file in VideoReDo and then Save As. It will ask if you want to remux the file.

What about a 'venture' into TVEngineV3 ? (good, bad or pointless?)

If the issue is coming from poor signal tvengine3 won't be helping.

 

[SpeedFreak]

Could it be audio/video resync that is causing the slight frameloss that you are seeing? Audio and video are sent using local "clocks", while your soundcard and videocard has their own hardwareclocks.

I have no way of determining if my clocks causes problems, but then I don't really have a problem anymore with skips or frameloss. That said, both my audio and graphics are integrated on the MB so they probably use the same clock source.

Are you shure that your tv does not support 50Hz when its intenalt tuner is used and receiving a PAL signal??

I'm not 100% sure since Samsung doesn't document this, but I know that both the HDMI and VGA inputs only support 60 Hz. This they do document and others have confirmed it.

MP cannot compensate for stupid tv-design though (such as crippling the PC input).

Why not?
Requiring the display to use the same refresh rate as the broadcast signal seems overly restrictive to me and given the popularity of Samsung LCD TVs I think MP should make an effort to support them properly.
I agree that it would be best if Samsung supported other frequencies (and native 1:1 on the HDMI), but that's not the point.

BTW, I have now tweaked the TV tuner a bit and the quality of it has improved some. The colors and contrast still sucks though. It would be smart if MP could perform the Hauppauge PVR-150 tweak internally since everyone seems to have to do it to get acceptable quality from it.

Anyhow, the Hauppauge PVR-150 is just a temporary tuner. I knew, when I bought it, that I would be replacing it for something better when that became available. I wanted an ATI TheaterPro 650 based card, but strangely they never appeared. I'm now looking for a Phillips SAA7162E based dual combo with HW MPEG encoding. I would like the FlyTV Express X1 MST-T2A2M, but I can't seem to locate any resellers.

 

[mbuzina]

MP cannot compensate for stupid tv-design though (such as crippling the PC input).

Why not?
Requiring the display to use the same refresh rate as the broadcast signal seems overly restrictive to me and given the popularity of Samsung LCD TVs I think MP should make an effort to support them properly.
I agree that it would be best if Samsung supported other frequencies (and native 1:1 on the HDMI), but that's not the point.
[/QUOTE]

Even if MP tries to compensate "stupid" TV Design it will not be as good as it can be with a well Designed TV. Having a TV only understand 60Hz in some of it's inputs shows it is not designed for the european market. People should stay clear of such "crap".

P.S.: Others are not allways better. I bought a Philips 37" LCD and found out too late that it does not do 1:1 at all!

 

[tourettes]

MP cannot compensate for stupid tv-design though (such as crippling the PC input).

Why not?
Requiring the display to use the same refresh rate as the broadcast signal seems overly restrictive to me and given the popularity of Samsung LCD TVs I think MP should make an effort to support them properly.
I agree that it would be best if Samsung supported other frequencies (and native 1:1 on the HDMI), but that's not the point.

Even if MP tries to compensate "stupid" TV Design it will not be as good as it can be with a well Designed TV. Having a TV only understand 60Hz in some of it's inputs shows it is not designed for the european market. People should stay clear of such "crap".
[/QUOTE]

There is a simple mathematical reason why it's not possible to compensate properly the from update frequency. Try dividing tv's 30 fps with broadcasts 25 fps. To get complete 30 fps that the tv is expecting you will need "magical" 5 frames that are generated from the 25 frames.

 

[MadDuke]

I have made a 1m37s recording and godt the following infos from VideoReDo:

http://www.malingkat.dk/info1.jpg
http://www.malingkat.dk/info2.jpg

I'm still a bit confused about this 'false' VMR9 ?!?

/MadDuke

 

[tourettes]

Looks like the stream has plenty of errors. If you would have a good signal then there shouldn't be any removed frames, at least in so short recording.

Try to make approc 1 hour cecording and see how much corrupted data the VideoReDO is finding from that.