Broadacst Clamp for DVD output refresh my memory

epirb wrote on 1/16/2005, 11:49 AM
I cant remember , but we had the discussion at the Vasst seminar ,and just dont know where to look here. search pulls up a gazillion threads.
Do you need to use the broadcast filter if you are outputing to DVDA mpeg template?
I do know that some of the colors according the the scopes are out of range.
But i thought at one time someone said it isnt nesc.
But better safe than sorry?

Comments

Jay Gladwell wrote on 1/16/2005, 4:09 PM
You can if you, but it isn't a must. The only time you have to really worry about colors is in broadvasting. Since your DVD isn't being broadcast, it isn't an issue.

Jay
Fleshpainter wrote on 1/16/2005, 4:34 PM
Ditto... Let 'er rip. DVD players don't broadcast on the airwaves. If it's going to a studio, talk with the broadcast specifications police first to find out exactly what they need.
epirb wrote on 1/16/2005, 5:44 PM
thanks then I'll stay "outside the law" I did not notice anything bad on playback, with a test disk.
RichMacDonald wrote on 1/17/2005, 7:55 AM
>thanks then I'll stay "outside the law" I did not notice anything bad on playback, with a test disk.

Obviously you have a fairly new TV, then. Older TVs can have problems when the signal is out of range. My TV buzzes loudly every time some commercial comes on with a lot of white. Broadcast filter eliminates this problem.
farss wrote on 1/17/2005, 1:04 PM
From what I'm seeing on the scopes there's a very good reason NOT to legalise for DVD. The DVD PLAYER scales the video to within legal, so if you do the same thing before encoding, your video is going to look pretty flat coming out of the player.

Easy enough to test this yourself. Encode some bars to to mpeg-2, drop back on Vegas T/L, levels look the same. Burn onto DVD, capture players output and drop that onto T/L, you'll see what I mean. Haven't been able to check this using players component feeds yet, but a component feed is nowhere near as sensitive to levels as a composite feed anyway.

Bob.