Vertical Stripes are my arch nemesis and must be stopped at all costs

[dog game]

Hello and thank you for your help. I keep getting nasty vertical lines or stripes apparent in my produced videos, either with videowave III or MSP 6.0 and I'm trying to find out what the cause is.

Is this issue defined as

A. combing?
B. Striping?
C. Interlacing?

just so I can get a handle on searching how to fix it.

I do a lot of overlays with logos, aka like NBC does with their logo, and I'm wondering if that causes it. But it happens whether or not I use an overlay in produced video (especially with VideoWave, which I stopped using because of the problem but now it seems to be happening in MSP 6 as well!

I just want to find out what's causing it so I can avoid the issue and finish production without this quality draining nemesis.

Do you think it's related to

A. capture
B. overlays
C. Videowave
D. MSP
C. none of the above?

Is this something I just have to live with???

I use a matrox marvel g200 in an Athlon 650 system with a Biostar M7MKE mobo with the latest tools and drivers. I have converted all footage to 29.97 (via MSP6 smart check and convert), even though much of it was captured with the PC-VCR at 30.xxx whatever frames/second.

One additional note, even though I have everything set to highest quality for production (or so I think) the produced files seem to come out at around 2,200kb/s, whereas the source files are closer to 3mb/sec. I don't know why that happens, but could that have anything to do with it?


Thanks so much for your help.
this is kind of urgent.

Michael http://dogtv.com

[Dr Mordrid]

How about a link to a still showing the effect. This might help a bit. So would specifics of the resolutions used, quality settings and the render options used in MSPro.

Dr. Mordrid


[This message has been edited by Dr Mordrid (edited 02 July 2000).]

[dog game]

Hello Doc,

I just uploaded a 1.8mb sample avi, which is from the beginning of a video I'm producing. It is 2.3 seconds long in the Marvel MJPEG codec.
http://dogtv.com/sample.avi

This is an extreme example of what I'm talking about (Because the video has been produced a few times, in both programs --videowave III and msp 6) you can see the smooth look of the Cool 3D animations I did, which segue into the nasty striping business I'm talking about. The striping is much worse on the TV screen than it is on the monitor.

My settings in ULEAD and Videowave are all at the highest quality settings 29.97, 704 x 480. But now it seems to be happening, even before I produce, which is what is really scary. I don't mind this effect for a few short clips I produce in VideoWave, but I don't want it happening throughout my video.

Any idea what causes this?

thanks again.

Michael
Reporting live... http://dogtv.com

[Dr Mordrid]

Ok....

The data rate looks very low, only ~560 kB/s video only for the live footage. I did this by loading your clip into MSPro6, cutting the animation and smartrendering the live footage to a file. The data rate analysys was done by MSPro6's internal analyzer.

I need to know what the setups are;

1. how did you vignette the clip? Did you scale it down and overlay it on a black background or use a black overlay with a transparant center? Vignette filter? Be precise as the data rate is low for any of these.

2. what were the EXACT settings you used for the capture? Compression etc.

3. how did the clip look in the capture?

4. what are the EXACT render settings you set up? Compression etc.

5. what versions of the display driver and video tools are you using?

Dr. Mordrid


[This message has been edited by Dr Mordrid (edited 03 July 2000).]

[dog game]

Hello Doc,

I've created a page which shows most of my settings. http://dogtv.com/moron.htm

btw, here's my mangled ulead32.ini file as well http://dogtv.com/ulead.htm

I can't save files over 2 gig, despite (trying) to implement your recommended fix. Let me know if you can see the prob, if you get a chance.

I have the latest (May of 2000) drivers and video tools (v 1.54). Let me know if I didn't include everything.

Thanks,

Michael
http://dogtv.com