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Decklink 10 bit workflow and mpeg2 question
Just want to ask, I am looking at using the decklink pro card to create Television spots as I really want to get the highest quality product to the networks. Having said that, our workflow at the moment is creating the TVC’s in after effects and then exporting as an uncompressed avi and then converting that to a high quality 15mbps mpeg2 file which we then send to networks electronically.
Given the end product will be an mpeg2 file, will creating the ads in 10bit rather than 8 bit bear any improvement in the final product?
Also once Ive made the mpeg 2 file I will need to drop it back into Ppro2 so I can monitor it through the decklink card just to make sure the quality is acceptable Is this possible via Ppro2 and Decklink?
Many thanks
Pablo
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33 Replies
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No, 10 Bit is 99% marketing bullshit.
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Sorry, beg to differ with the BS. If you do ads with blurs, graduated animations, slow dissolves or anything where there is a large difference in light-to-dark or a subtle chroma range like animation and underwater footage, you WILL see a considerable difference over 8-bit. This has been proven in countless tests and reports for years. Just do a search on Google for “10-bit versus 8-bit”.
Maybe you won’t see huge diferences on mainstream video material but if you have scenarios like I mentioned above and the edit has had heavy rendering/exporting/dubbing, then the 10-bit editing process quality will be reflected in your 15mbs TVC master. All our TVC’s are converted from a 10-bit BM export in Cinema Craft at 15mbs CBR and they look great.
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au -
Hi Peter
What is a TVC??
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Tele(v)ision Commercial. Sorry, probably an Australianism.
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au -
And you deliver these as MPEGs? Sorry just wondering.
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Yes,
Nearly all commercials in Australia are sent by FTP using companies like Dubsat. Transmission by the TV stations is via MPEG-2 stream so it makes sense. You profile is blank and I don’t know which country you are in, but that is how most production houses delivers ads these days here in Australia. The distribution company then sends the MPEGs out via satellite overnight, although if you pay for it, you can have an ad delivered to a TV station anywhere in Australia within a couple of hours.
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au -
I’m in Canada. We do a weekly show for a national network but still live in the world of tape. They may do ads this way here but I’m not in that loop at all.
Thanks for the info.
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Hi Peter – thanks for the response, very helpful and esentially what I thought but needed to hear. To encode our TVC’s I use Canopus Procoder2 with a master quality setting and CBR of 15mb/s. Is Cinema Craft a better option than Procoder? DOes it offer a wider choice of settings that would result in a better quality mpeg? Any chance you could let me know any special settings you use with CCE?
Thanks again
Pablo
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At 15mbs CBR, I’d say there’s nothing in it. But even so, I still do a multi-pass (4x) CBR 😉 Call me superstitous! Where Cinema Craft excells in in multi-pass VBR. For software DVD encoding, I really think it is the best. Expensive, but good.
Peter Corbett
Powerhouse Productions
Australia
http://www.php.com.au -
Lol – nothing like being 110% sure! Then again considering the price diference between CCE and Procoder, youd actually want to SEE that extra 10% somewhere.
Pablo
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