Wednesday, September 13, 2017

[Avid-L2] Frame flex / other P to I madness

 

Got a note from CC, bitching that a DnxHD 185x file shows banding on what 'should' be 10 bits input files.

Someone made a DnxHD 185x mix down in a 1080i project, while the content was progressive.
CC says that during the mix down stuff was converted from 10 bits to 8 then unconverted to 10.
(I know the CC girl  who's bitching, she's a total pro, so if what she sees is bad, it is bad. But why?)

Is there any truth in the Avid mistake on downsampling when going from P to I  or should I investigate further?
(I'm not sure what Avid version did do the output, let alone what has happened in between….)


Bouke

Edit 'B / VideoToolShed.com
van Oldenbarneveltstraat 33
6512 AS  Nijmegen
+31 6 21817248

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Posted by: Bouke <bouke@editb.nl>
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this is the Avid-L2

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