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Data Rate versus Bit Rate

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Glenn Payne
Data Rate versus Bit Rate
on Jul 10, 2019 at 8:51:58 pm

I look around and couldn't find anything on this. Also didn't see a "compressor 4" category so posted in fcpx.

I'm exporting a Prores 4444 3840 x 1634 short film. The master file is 145.6 GB and the custom made H.264 MP4 at 2048 x 871 is only 3.29 GB. I thought the 3.29 seemed smaller than expected. A friend asked what the bitrate was and I noticed there's an option for changing the bitrate for DVD exports but not for MP4.

I did see a "Data Rate" option that ranges from 64 - 30,000. Does the data rate act as the bitrate for digital files like MP4s? Should I raise that number as if it were the bitrate? if so, what's a recommend number?

Thanks so much for any advice!

Glenn


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Bret Williams
Re: Data Rate versus Bit Rate
on Jul 10, 2019 at 9:41:03 pm

Data rate, bit rate, same thing isn't it? For 4k I'd peg that at 30 because 1080p is recommended around 15.

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Glenn Payne
Re: Data Rate versus Bit Rate
on Jul 11, 2019 at 2:25:32 am

Thanks, Bret!

So for data rate numbers would that mean I would set it at 30,000? (out of the 64-30,000) range.


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Bret Williams
Re: Data Rate versus Bit Rate
on Jul 11, 2019 at 3:32:17 am

I create 4K for upload at 30,000 and 1080p at 15,000.

______________________________________________________
https://BretFX.com FCPX Plugins & Templates
New Transition Pack! SLIDE WIPES Customizable Wipes that Move
https://bretfx.com/product/slide-wipes


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Glenn Payne
Re: Data Rate versus Bit Rate
on Jul 11, 2019 at 3:40:39 am

perfect. Thanks!


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