• Blackmagic Design

  Blackmagic codecs Vegas 9e

  Posted by Larry Brewer on June 30, 2010 at 3:03 pm

  First, my appreciation for the work put into Media Express 2.1. Blackmagic listened to my concerns and acted. I couldn’t be more pleased.

  I am using Sony Vegas 9e. When I render SD or HD AVI with Blackmagic codecs, I get an unintended black level increase. Probably 7.5% NTSC setup. This is a problem since some of my clips already have 7.5% setup.

  The exception is when rendering using motion jpeg Blackmagic codec there is no increase in setup.

  Is there a setting I’m not aware of?

  I’ve added a post with this same question in the Sony Vegas forum and so far have gotten no takers.

  Thanks for any suggestions.

  Larry Brewer

  HD Extreme
  PC Win 7
  Intel quad core cpu
  Intel Motherboard 12 gig ram

  George Sey replied 15 years, 10 months ago 3 Members · 5 Replies
• 5 Replies

• 

  Kristian Lam

  July 1, 2010 at 11:28 am

  Hi Larry,

  We will get our QA team to check this out and get back to you.

  regards

  Kristian Lam
  Blackmagic Design
• 

  Larry Brewer

  July 1, 2010 at 4:00 pm

  Kristian

  Seeing how the Media Express will only play clips that were either captured by a Blackmagic card (HD Extreme in my case) or clips that are rendered using Blackmagic codecs, the idea of having a codec that can be used to transparently convert an mov, mpeg2, or wmv file to avi Blackmagic is important.

  Most of my clips I import to Media Express are avi files. I use Sony Vegas 9e to convert them to avi 4:2:2 Blackmagic so they will be compatible with Media Express 2.1. This is where I see the black level increase. In broadcasting we called this the pedestal, or setup.

  I wouldn’t expect the hue to change or the color saturation, so why should I accept a black level change? It messes up the contrast and makes everything look washed out.

  Again, thank you for passing this on and I look forward to a fix or at least a work around.
• 

  Kristian Lam

  July 2, 2010 at 12:02 am

  Hi Larry,

  Are you converting to 8-bit or 10-bit?/ Looks like a gamma issue so I’ll get the guys to check it out.

  regards

  Kristian Lam
  Blackmagic Design
• 

  Larry Brewer

  July 2, 2010 at 3:06 am

  It doesn’t matter if it’s 8 bit or 10 bit, or SD or HD. Any codec except motion jpeg. And I don’t think it’s a gamma issue. 7% to 10% setup is added to the video as it is rendered. I have to assume it has to do with NTSC 7.5% setup. I think I need to send “before and after” screen caps of my WFM scope.

  Thanks again for your attention to this matter.

  Larry Brewer
• 

  George Sey

  July 3, 2010 at 5:06 pm

  Hello Kris
  Does intensity work with Vegas

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