[Daniel Low]

Keep your eye on the NAB news, they’ll be a bunch of stuff announced this week.

Don’t wait for next year, just make sure you are at IBC in Amsterdam, September. (It’s much better than NAB 😉 )

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[Daniel Low]

You should be in Vegas:

https://www.tdvision.com/TDV_NAB2010.htm

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[Daniel Low]

The Blu-Ray 3D spec was only finalised in December last year. Don’t expect to find anything useful, freely available. Just like when DVD Videos fist came onto the market, finding out out to author one was nearly impossible.

[Andrew Saliga] “but we have a large client requesting 3D output”

How, where etc and what’s the clients source?

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[Daniel Low]

[Brian Alexander] “Let’s say your TV is set to 1080i and you’re watching a 720p station, the progressive signal is processed by the cable box to upconvert and introduce scan lines only to be deinterlaced by your TV.”

Let’s just say you setup your TV incorrectly for the service you are receiving, or you changed it from the ‘Auto’ setting which is usually the default.

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[Daniel Low]

[Brian Alexander] “Interesting fact: 99 percent of the video you watch on TV is interlaced!”

[Brian Alexander] “[Daniel Low] “Certainly not the case in Europe. SD is interlaced but HD is a mixture of 720p and 1080i ”

Isn’t 1080i interlaced? There is a large mix of 720p and 1080i footage here in the states, it’s predominately 1080i. My examples below are related to frame rates we have here in the states. 25 and 50 fps workflows and processing is probably a bit different. “

I’m not following you.

You first said that 99% of what we see in on TV is interlaced. I pointed out that in Europe we have a mixture of Progressive and interlaced; 576i and 1080i, and then you go on to say that there’s also a mix of 720p and 1080i int he States.

So what is it? 99% interlaced or…….

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[Daniel Low]

*EULA*

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[Daniel Low]

[Brian Alexander] “There all loaded with Qmaster (no license needed) which installs the ProRes encoder! “

Qmaster is part of, and only part of FCP. Therefore a licence is needed. Qmaster needs a licence. Qmaster does not install the Prores CODEC alone. ProRes is part of Final Cut Studio! Of which Compressor (and as such Qmaster) is a subset!

The ELUA is very visible as part of a standard FCP install.

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[Daniel Low]

[Chris Lambert] “I keep finding that the image is bland and almost desaturated compared to the original image”

How exactly are you performing your comparisons?

[Chris Lambert] “is there a procedure that the image must be over saturated before export with this codec or is it a simple settings routine that I have missed? “

No. It could be something you’ve overlooked in your Avid export settings?

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[Daniel Low]

Oh my! – Brian, your mileage may vary but I think you’re getting a few things wrong!

Here’s a post from David Newman, CTO of Cineform when asked what’s the best workflow going from 1080i to SD DVD

“Personally I avoid interlaced, so my suggestions will be limited. Others can chime in.

Try this :

Complete a 1080i60 export from Premiere. Load that new 60i AVI in HDLink and set the perferrences to High (at least), Progressive, Remove 3-2 pulldown, Deinterlace and scale to NTSC 16×9. The resulting conversion will be 720×486 16×9 progressive 23.976p — load that in EncoreDVD (or similar) for NTSC master. For PAL DVD use High (at least), Progressive, Remove 3-2 pulldown, Deinterlace and scale to PAL 16×9 and add Rate Change “23.976p to 25p (+4.1%)” and check “Maintain audio pitch.” This will produce a 720×576 16×9 25p output.”

Did you notice his reference to Deinterlcing!

Link Here

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[Daniel Low]

[Brian Alexander] “1. DVD Creation (you can burn a 29.97 progressive sequence to your DVD. What you may not realize is that your DVD Player is most likely performing a scan line decimation only to have your TV perform a scan line interpolation. To much processing!) “

Only if the DVD player is connected to a CRT TV that does not support progressive scan. This does not apply to Plasma or LCD displays which are the norm these days. It’s impossible to buy a new CRT TV (at least here in the UK) and that has been the case for a number of years.

[Brian Alexander] “2. Going to tape. I think some people still use tape machines? When you lay footage to tape, it’s interlaced. “

So, what about all the HD tape formats?

[Brian Alexander] “Interesting fact: 99 percent of the video you watch on TV is interlaced!”

Certainly not the case in Europe. SD is interlaced but HD is a mixture of 720p and 1080i

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