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DNxHD codec confusion
Hi all,
I’m completely new to Avid Media Composer 4.0 and have a list of different DNxHD codecs to choose from when importing. What are the differences between DNxHD 120, 180 and 180 X?
Thanks,
Michael, London, UK.
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6 Replies
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Michael,
Check the Help files, under “Resolutions and Storage Requirements”. It says “A good guideline for selecting a resolution is to use the Avid DNxHD resolution that matches the megabit data rate of the acquisition format. For HDCAM-originated material, for example, select DNxHD 145, which closely matches the data rate of HDCAM but provides better mastering results with significantly less storage required. The following table compares Avid HD formats to the HDCAM format.”
Also, it describes the specification of each resolution type thoroughly. -
Thanks for your reply, helpful!
What is strange is that when importing files I only have a choice of DNxHD 120,180 and 180X but when I export I have a choice of DNxHD 36,120,145,180,180 X
Do you know why?
Michael F
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What is your project type?
DNxHD36 is only available in 23.976p/24p/25p projects. -
The file I am importing into Media Composer is an Apple Prores 4444 Quicktime 1920×1080 with an upper field dominance. The film was originally shot on RED in progressive but the online house re exported the Quicktime after the grade with a forced interlace, I think for DVD purposes.
I will be cutting a trailer from this QT and exporting for the web and also for DVD.
Thanks
Michael F
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What is the framerate?
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Hi
25 frames per second
Michael F
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