Low quality playback on comp monitor using Matrox RT.X10 a..

[Guest]

Archived from groups: alt.comp.apps.adobe,alt.comp.periphs.videocards.matrox,rec.video.desktop (More info?)

Hi,

When using Premiere Pro with the Matrox settings, I get poor quality
playback on my computer monitor, even though the video monitor output looks
fine. I suspect the output on my computer monitor is created using only half
the available vertical resolution, which produces some very ugly artifacts.

Things I've tried to correct this problem (but all have failed):
- dropping the colour depth to 16 bit
- dropping the resoltion on my monitors
- shooting in progressive-frame mode
- changing my Matrox P750 dual-head mode from independent mode to stretch
mode
- changing Premiere Pro playback to "highest quality"
- tinkering with just about every setting in the playback options box.

The video does play fine if I
- use Windows Media Player 9
- open a new Premiere project using Premiere's own PAL settings rather than
Matrox's settings. This isn't a realistic work-around though because
Premiere seems to use all my sytem resources just to play the video.

Please help - how can I get full-res video on my computer monitor when
playing back in Premiere?

My setup is:
Pentium 4 2.8Ghz (512k L2 cache, 800Mhz FSB, HT)
2Gbytes of dual channel DDR-400 SDRAM
Matrox RT.X10 (latest drivers)
Adobe Premiere Pro
Matrox P750 (latest drivers and BIOS)
2 analogue monitors set at 1280x1024
Windows XP Pro SP1
DirectX 9.0b

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

>Hi,
>
>When using Premiere Pro with the Matrox settings, I get poor quality
>playback on my computer monitor, even though the video monitor output looks
>fine. I suspect the output on my computer monitor is created using only half
>the available vertical resolution, which produces some very ugly artifacts.
>
>Things I've tried to correct this problem (but all have failed):
>- dropping the colour depth to 16 bit
>- dropping the resoltion on my monitors
>- shooting in progressive-frame mode
>- changing my Matrox P750 dual-head mode from independent mode to stretch
>mode
>- changing Premiere Pro playback to "highest quality"
>- tinkering with just about every setting in the playback options box.
>
>The video does play fine if I
>- use Windows Media Player 9
>- open a new Premiere project using Premiere's own PAL settings rather than
>Matrox's settings. This isn't a realistic work-around though because
>Premiere seems to use all my sytem resources just to play the video.
>
>Please help - how can I get full-res video on my computer monitor when
>playing back in Premiere?
>
>My setup is:
>Pentium 4 2.8Ghz (512k L2 cache, 800Mhz FSB, HT)
>2Gbytes of dual channel DDR-400 SDRAM
>Matrox RT.X10 (latest drivers)
>Adobe Premiere Pro
>Matrox P750 (latest drivers and BIOS)
>2 analogue monitors set at 1280x1024
>Windows XP Pro SP1
>DirectX 9.0b
>
>

You are seeing normal artifacts that result from displaying a television signal
on a computer monitor. In other words: everything you're seeing is normal, and
inherent in what you're doing. It is possible to modify a television signal to
look "better" on a computer monitor, but it has to be displayed on a television
monitor to see what is actually in the signal. Yes, computer and television
monitors work in fundamentally different ways....


webpa

 

[Guest]

Archived from groups: alt.comp.apps.adobe,alt.comp.periphs.videocards.matrox,rec.video.desktop (More info?)

On Sat, 14 Aug 2004 12:55:53 +0100, "Daniel Kelly \(AKA Jack\)"
<d.kellyNOSPAM@NOSPAM.ucl.ac.uk> wrote:

> Hi,
>
>When using Premiere Pro with the Matrox settings, I get poor quality
>playback on my computer monitor, even though the video monitor output looks
>fine. I suspect the output on my computer monitor is created using only half
>the available vertical resolution, which produces some very ugly artifacts.
>
>Things I've tried to correct this problem (but all have failed):
>- dropping the colour depth to 16 bit
>- dropping the resoltion on my monitors
>- shooting in progressive-frame mode
>- changing my Matrox P750 dual-head mode from independent mode to stretch
>mode
>- changing Premiere Pro playback to "highest quality"
>- tinkering with just about every setting in the playback options box.
>
>The video does play fine if I
>- use Windows Media Player 9
>- open a new Premiere project using Premiere's own PAL settings rather than
>Matrox's settings. This isn't a realistic work-around though because
>Premiere seems to use all my sytem resources just to play the video.
>
>Please help - how can I get full-res video on my computer monitor when
>playing back in Premiere?
>
>My setup is:
>Pentium 4 2.8Ghz (512k L2 cache, 800Mhz FSB, HT)
>2Gbytes of dual channel DDR-400 SDRAM
>Matrox RT.X10 (latest drivers)
>Adobe Premiere Pro
>Matrox P750 (latest drivers and BIOS)
>2 analogue monitors set at 1280x1024
>Windows XP Pro SP1
>DirectX 9.0b

You've already discovered the key -- disable the Matrox settings,
which emphasize real time to the video output rather than the computer
display. It is a tradeoff -- do you want the full resolution video
preview, or a better computer monitor preview?

If you're goal is video output, I'd say stick with the video output.
That is why you have the .X10 after all.

Note, BTW, the same issue happens if you run DV preview in real time
(regardless of video board used).

Anyone know if there is a video display board which will make a
difference with this, deinterlacing the video overlay? I suspect not,
because of the CPU hit -- the actual display data going to two places
costs CPU time, and cutting the data for the computer display is the
simplest fix.

--
*-__Jeffery Jones__________| *Starfire* |____________________-*
** Muskego WI Access Channel 14/25 <http://www.execpc.com/~jeffsj/mach7/>
*Starfire Design Studio* <http://www.starfiredesign.com/>

 

[Guest]

Archived from groups: alt.comp.apps.adobe,alt.comp.periphs.videocards.matrox,rec.video.desktop (More info?)

Dear Jeffery,

Many thanks for your very quick reply... I had feared that it wasn't so much
a 'bug' as a limitation. It turns out my fear was right!

Jack



"Jeffery S. Jones" <jeffsj@execpc.com> wrote in message
news:2o3sh0pjtdjh8ddrsk5p2nvltd6tm9taj9@4ax.com...
> On Sat, 14 Aug 2004 12:55:53 +0100, "Daniel Kelly \(AKA Jack\)"
> <d.kellyNOSPAM@NOSPAM.ucl.ac.uk> wrote:
>
> > Hi,
> >
> >When using Premiere Pro with the Matrox settings, I get poor quality
> >playback on my computer monitor, even though the video monitor output
looks
> >fine. I suspect the output on my computer monitor is created using only
half
> >the available vertical resolution, which produces some very ugly
artifacts.
> >
> >Things I've tried to correct this problem (but all have failed):
> >- dropping the colour depth to 16 bit
> >- dropping the resoltion on my monitors
> >- shooting in progressive-frame mode
> >- changing my Matrox P750 dual-head mode from independent mode to stretch
> >mode
> >- changing Premiere Pro playback to "highest quality"
> >- tinkering with just about every setting in the playback options box.
> >
> >The video does play fine if I
> >- use Windows Media Player 9
> >- open a new Premiere project using Premiere's own PAL settings rather
than
> >Matrox's settings. This isn't a realistic work-around though because
> >Premiere seems to use all my sytem resources just to play the video.
> >
> >Please help - how can I get full-res video on my computer monitor when
> >playing back in Premiere?
> >
> >My setup is:
> >Pentium 4 2.8Ghz (512k L2 cache, 800Mhz FSB, HT)
> >2Gbytes of dual channel DDR-400 SDRAM
> >Matrox RT.X10 (latest drivers)
> >Adobe Premiere Pro
> >Matrox P750 (latest drivers and BIOS)
> >2 analogue monitors set at 1280x1024
> >Windows XP Pro SP1
> >DirectX 9.0b
>
> You've already discovered the key -- disable the Matrox settings,
> which emphasize real time to the video output rather than the computer
> display. It is a tradeoff -- do you want the full resolution video
> preview, or a better computer monitor preview?
>
> If you're goal is video output, I'd say stick with the video output.
> That is why you have the .X10 after all.
>
> Note, BTW, the same issue happens if you run DV preview in real time
> (regardless of video board used).
>
> Anyone know if there is a video display board which will make a
> difference with this, deinterlacing the video overlay? I suspect not,
> because of the CPU hit -- the actual display data going to two places
> costs CPU time, and cutting the data for the computer display is the
> simplest fix.
>
> --
> *-__Jeffery Jones__________| *Starfire* |____________________-*
> ** Muskego WI Access Channel 14/25 <http://www.execpc.com/~jeffsj/mach7/>
> *Starfire Design Studio* <http://www.starfiredesign.com/>

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Dear WEBPA,

Many thanks for your reply.

But the video looks fine on my computer monitor if I play it using Windows
Media Player 9 (even if the pixel aspect ratios of DV and SVGA are
different). It just looks shoddy if played using the Matrox system. And it
still looks shoddy if I shoot progressive scan (which is more like what a
computer displays).

Thanks,
Jack



"WEBPA" <webpa@aol.com> wrote in message
news:20040814085418.04802.00001288@mb-m12.aol.com...
> >Hi,
> >
> >When using Premiere Pro with the Matrox settings, I get poor quality
> >playback on my computer monitor, even though the video monitor output
looks
> >fine. I suspect the output on my computer monitor is created using only
half
> >the available vertical resolution, which produces some very ugly
artifacts.
> >
> >Things I've tried to correct this problem (but all have failed):
> >- dropping the colour depth to 16 bit
> >- dropping the resoltion on my monitors
> >- shooting in progressive-frame mode
> >- changing my Matrox P750 dual-head mode from independent mode to stretch
> >mode
> >- changing Premiere Pro playback to "highest quality"
> >- tinkering with just about every setting in the playback options box.
> >
> >The video does play fine if I
> >- use Windows Media Player 9
> >- open a new Premiere project using Premiere's own PAL settings rather
than
> >Matrox's settings. This isn't a realistic work-around though because
> >Premiere seems to use all my sytem resources just to play the video.
> >
> >Please help - how can I get full-res video on my computer monitor when
> >playing back in Premiere?
> >
> >My setup is:
> >Pentium 4 2.8Ghz (512k L2 cache, 800Mhz FSB, HT)
> >2Gbytes of dual channel DDR-400 SDRAM
> >Matrox RT.X10 (latest drivers)
> >Adobe Premiere Pro
> >Matrox P750 (latest drivers and BIOS)
> >2 analogue monitors set at 1280x1024
> >Windows XP Pro SP1
> >DirectX 9.0b
> >
> >
>
> You are seeing normal artifacts that result from displaying a television
signal
> on a computer monitor. In other words: everything you're seeing is
normal, and
> inherent in what you're doing. It is possible to modify a television
signal to
> look "better" on a computer monitor, but it has to be displayed on a
television
> monitor to see what is actually in the signal. Yes, computer and
television
> monitors work in fundamentally different ways....
>
>
> webpa
>