Re: [Avid-L2] Dnx220 vs. 220X file size?

"X" means ten bit . . . the other resolutions are 8 bit.

HTH,

B

Benjamin Hershleder
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On Aug 8, 2011, at 1:22 PM, Jeff Cook wrote:

> Isn't the 220x intended for alpha channels, sort of like "Millions+"?
>
> --
> Jeff Cook
> jeff@cookstudios.com
> 703-980-1104 (cell)
>
> CookStudios.com
> Freelance Video Editing
> Washington DC & Portable
>
> Quoting Dennis Degan <DennyD1@verizon.net>:
>
> >
> > On Aug 8, 2011, at 2:58 PM, John Moore wrote:
> >
> > > A friend said he imported a CG QT file as 220 and 220X and the
> > files are the same size. He is speculating that the 10 bit codec must
> > have to have lower resolution in order for the file sizes to be the
> > same. I'm not sure what exactly he means by the same size, I can't
> > imagine they would be exactly the same size. I'm trying to get more
> > specifics. Would it make any sense that the 10 bit codec might allow
> > for more efficient compression than 8 bit? I would really doubt there
> > would be a loss of resolution to accomodate more color depth.
> > Ultimately the concern is image quality when resizing shots. 220X
> > should be better than 220 for everything right? If not I'm feeling
> > everything I know is wrong.
> >
> > I rhetorically ask:
> >
> > "What part of '220Mbps' do you not understand?" (I know, I'm being
> > snide . . . . sorry.)
> > But seriously, DNxHD 220 and DNxHD 220X both operate at 220Mbps,
> > hence the number in the name '220'. 220X simply has slightly more
> > compression in order to provide the higher bit depth. The resolution
> > is the identical between the two.
> >
> > Dennis Degan, Video Editor-Consultant-Knowledge Bank
> > NBC Today Show, New York
> >
> >
> >
> >
> >
> >
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> >
>
>

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