Latest post Wed, Dec 6 2017 5:28 PM by Brent Marginet. 0 replies.
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  • Wed, Dec 6 2017 5:28 PM

    Apple ProRes 4444 MXF Imports and Mix Downs Low Bit Rate

    I've just run into a rather curious issue in MC 8.8.5 with Apple ProRes 4444 MXF Imports and Video Mixdowns.

    If I use DNxHR 444 for an import or Video Mix Down in a 2048x858 Project the MXF file has a Bitrate of 298mbs. The file size is also very similar to the orignal Apple ProRes 4444 File, however if I set the Import or Mix Down to Apple ProRes 4444 the video has a very low bitrate of about 46mbs. The file size is also about 1/5th the size of the original.

    The Dialogue box that pops up for a Video Mixdown generally gives a failry accurate estimate of the final size that the mixed down video file will be. In this case the size is pretty much correct in the Dialogue box but as stated before the actual file ends up much smaller and at a lower bit rate than I think it should.

    Mac Pro - 5,1 - 2 x 3.46ghz 6 Core Xeons El Capitan 10.11.6 64gb of OWC RAM GTX-980Ti Video Card Avid Nitris DX Symphony 8.8.5 [view my complete system specs]
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