EX1 full rest edit to PAL DVD

Lingo wrote on 2/22/2008, 11:25 AM

I am trying to discover which film format works best when converted to PAL DVD.

This seems to depend on whether the DVD is viewed on a CRT TV or an LCD TV.

In a sequence I have just edited.

Me to camera, looks OK on LCD but on CRT my hair shimmers and the PC in the background (LCD screen) flickers and the part of the PC tower flickers.
This is not seen on the LCD.( could this be the video lights I used?)

Fimed using HQ 1080/25P shutter on 1/50 , edited in Vegas 8b with this setting and mastered to DVD using DVD Architect 4.5b.

Comments

farss wrote on 2/22/2008, 1:33 PM

The LCD isn't an interlaced display which is why you don't notice the issue of having too much vertical resolution in your rendered output.
PALs 576i has a limit of around 480 lines for vertical resolution. Downscaling HD or hires stills you can easily exceed this. Solution is to reduce the vertical resolution using either the Gaussian Blur or Median FX in Vegas. You'll need only a very small amount of the FX and apply it only in the vertical direction.

Bob.

Lingo wrote on 2/22/2008, 2:11 PM

Many thanks farss.

What you say makes perfect sence. Will try it and let you know the outcome.

Lingo wrote on 2/25/2008, 12:30 PM

Hi Farss and everybody esle reading this.

Well the guassion blur vertical lowest setting worked but at the expense of making the picture appear soft focus.

Left click antiflicker helps but does not eliminate the flicker.

Going to try median fx min setting next.

This is potentially a very serious problem.

Pictures will certainly watched with people using CRT TVs and they are not going to like this.

Will also call Sony professional in the UK tommorow.

One final thought . Is this just a PAL problem or does same apply to NTSC?

farss wrote on 2/25/2008, 3:10 PM

This applies to PAL and NTSC.
This is in no way a problem unique to the EX1, check some old threads at DVInfo regarding V1P. Watch SD PAL, since most broadcasters are now acquiring HD and downscaling you'll even see it in OTA material. The appearance of the problem is content dependant. We have certain types of flora down here that make this problem very apparent.
Keep in mind that you can always deliver more resolution in P than I (576p V 480). You might think you've gotten away with it until the content changes!

I haven't updated how best to wrangle this since about V5 days and I really need to do that asap.

Bob.

MattWright wrote on 2/26/2008, 7:43 AM

Hi There.

I found that to get the best quality with the least aliasing around eges and lines, and the smoothest output, I usually set my project to be 1920 YUV HD, this suits the EX1 Material, when I have finshed editing I render the project from the EX1 to 1920x1080 Sony YUV, using Best Quality setting, and Interlaced setting to Interpolate.

Then I take this hugh AVI file and run the file through TMPEnc and scale this down to an Anamorphic Widescreen Sony YUV AVI File. I make sure that in TMPEG I use Lancsoz scaling for Interlaced material or BiLinear scaling for Progressive material, making sure that the Hi-Quality Interlaced Scale option is enabled.

I then run this 720x576 AVI through CinemaCraft Encoder, doing a fairly hefty Multi Pass encode to convert this to MPEG2.

No I know that this is extremly long winded, and takes hugh amounts of disc space and time, but the results are Significantly / Miles better than just exporting to a PAL Mpeg2 stream straight off of a HD TImeLine.

Try it and let me know, if you find any better solutions.

Matt

Lingo wrote on 3/5/2008, 1:21 AM

Hi Matt

Sorry for slow reply. Have been experimenting by shooting 720 / 50P . Good results even to DVD but occassionally still get a little flickering.

So coming back to you suggestion. Which TMPG programme do you mean. Could you provide a link please?
The same re CinemaCraft encoder.

Many thanks