• Adobe Premiere Pro

  Question about Bit Depth Support

  Posted by Troy Smith on August 30, 2008 at 11:39 pm

  HI everyone,

  I’m trying to understand bit depths in cs3,
  I have a few questions regarding it.

  Firstly I understand that we now have 32 bit float and 16 bit
  processing for certain effects, now I understand that the
  video in our project gets expanded to 32 bit float for the rendering
  of a 32 bit effect, then after the effect has rendered, it then
  gets compressed back down to the project bit depth, of either 8 or 10 bit depending on the internal project bit setting.

  3 Questions below regarding bit depths.

  1. If I have a dv project, is this project setting at 8 bit, so no matter what bit depth footage that I bring in, it will be reduced to
  8 bits per channel, as the dv project internal bit depth is 8 bits, is this correct?

  2. Obviously when chosing the Adobe sdi projects and chosing the yuv10bit the internal project is limited to 10 bit?

  3. When chosing a custom project, if one choses Desktop as the Editing Mode, what is the internal bit depth of that project, reason
  for chosing desktop would be to use a custom resolution, like
  a 2k project to assemble a film out edit etc. So what is
  the internal bit depth of this type of project limited to, with this
  particular project, I’m trying to figure out what happens if I bring
  10 bit footage in here, is it getting reduced internally to 8 bit,
  or is this editing mode 10 bit internally.

  I hope this is all clear, if not, I will try again.

  Thanks, and any help greatly appreciated.

  Troy Smith

  Troy Smith replied 18 years ago 1 Member · 0 Replies
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