Output doesn't match preview

Rattangle wrote on 9/13/2006, 8:43 PM
Ok, I've searched and tweaked and have had little results so I could use some help.

One stream of video nothing fancy. (No FX) Preview moinitor is calibrated and video is adusted for the desired output. When rendered as DV avi, the video has much more contrast and brightness, even when view on the same monitor that was used as the preview monitor.

Any suggestions where to begin.

Edited to include Sorry, This is using Vegas 6 full version

Comments

jeffk wrote on 9/13/2006, 10:15 PM
Maybe check your IRE setup?
Paul_Holmes wrote on 9/14/2006, 12:08 AM
Under Preferences | Options, General tab make sure you have "Use Microsoft DV Codec" unchecked. That may be the problem.
Rattangle wrote on 9/14/2006, 10:33 AM
Thanks for the suggestions, I didn't have 'Use Microsoft DV codec' checked and I double checked the IRE. Black and White levels are 'On the Nose'. Anyone have any other suggestioins.

I see my desired outcome on the preview monitor and render the avi file. The rendered file does not match what I saw in the preview moinitor, even when it's viewed on the preview monitor. Black and white levels are completely different than the vegas setup.

Scratching my head, can you hear it. Nothing has changed with hardware or software. It's my dedicated vegas computer.

Any other suggestions? I willing but can't see where doing a reinstall of vegas 6 would change anything.
Former user wrote on 9/14/2006, 10:34 AM
What are you using to view the finished AVI?

IF you import it back into Vegas, does it still look different?

It might require that the OVERLAY video be calibrated as well.

Dave T2
fldave wrote on 9/14/2006, 10:46 AM
Yes, Win Media Player has options to tailer the video colors, brightness. Sounds like one of those options is set. Other players may have similar options.

In WMP: select View\Enhancements\Video Settings. Hue, brightness, saturation, contrast controls are displayed.
Rattangle wrote on 9/14/2006, 10:47 AM
1. I have viewed the output on my NTSC broadcast monitor I use to preview as well as an LCD monitor and a TV set, the change is very visable everywhere.

2. When I import the rendered version, the change is also evident in vegas. Black and White levels are completely different in rendered avi.

3. 'OVERLAY video? You mean the video preview? I'm not trying to be cute, I just want to make sure I don't assume anything. Viewing the desired output in vegas via the preview window and the finished product on the same monitor as a comparison.

I have the original veg opened with preview on my monitor. Render the file and then import it back into the timeline so I can compare the original with the rendered version and then turn on video scopes and set it to waveform. Black drops about 8 point and white rises from about 98 to 115 on the rendered version.
Former user wrote on 9/14/2006, 11:07 AM
OVERLAY is used by some programs to display video. This function is determined by your video card. It has a seperate set up option, but if you are seeing the same difference when importing the AVI back into Vegas, then chances are it is not an overlay problem.

Dave T2
Jay-Hancock wrote on 9/14/2006, 11:36 AM
I also am not trying to be a wiseguy.. You said there are no FXs on the track. Did you check the master video output bus for FXs? For the Vegas preview, is it set for computer RGB or studio RGB? Are you using a standard, unmodified template for the render? For the television / broadcast monitors, is there an IRE control on your firewire A/D convertor?
Rattangle wrote on 9/14/2006, 12:19 PM
Duhhhh? As always, when there is a problem we jump to the conclusion that there is a single problem, when actually there was two problems combined.

I indeed had made a change to the system. I had updated the drivers on one firewire card (the one used to drive the monitor and this indeed had added an IRE Control ), Secondly I swear I had checked the computer RGB/Studio RBG settings but I didn't. Problem cured.

So thanks guys, I feel dumb, and the bad part, I would have asked anyone else the same questions, you asked me, Problem was, I just didn't follow standard procedures. :o)