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PAL DVD FLICKER
Hi,
I seem to be having a Flicker problem with my PAL Dvd, mainly with one of the logo ( the inside colors of the logo) and the menu screen. Unfortunately this seems to be happening more only the clients TV screen. There’s like an extreamly low flicker on my flat screen but nothing too shocking.The output mpeg2 files using compressor and the authoring was done on DVD Studio pro.
Any thoughts on this issue???
:-))cheers,
Gautam. -
16 Replies
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where and how did you put together the media that is showing the problem?
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Hi,
every thing is done on Final Cut Pro and the DVD Authored in DVD Studio Pro.
I have not applied a ‘Reduce De-Interlaced Flicker’ Filter to the logos and this helps but kind of saturated the colors of the logo as well as adds a bit of black into it, making it looked a bit distorted. Is there any other way of handeling this?
G -
Are you viewing the PAL DVD on PAL equipment in a non-PAL country, like the USA. If so, the flicker you are seeing may be due to the 60hz electrical current.
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Nope! I am viewing the PAL DVD on a PAL DVD player.
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Gotham
does the source flicker when you view it in FCP or only after you author the DVD?
is the logo animated or static?
check your scopes. make sure your colours are broadcast safe. try applying the Broadcast Safe filter set to “Conservative”
Andy -
Gotham,
What does the logo look like and what size is it on the screen?If there are fine lines in the logo, they will flicker.
You can soften them by using a vertical blur, but this issue is covered a lot if you do a search … -
[Gotham] “Nope! I am viewing the PAL DVD on a PAL DVD playe”
What country are you in?
If you use PAL equipment in the US you will see a flicker.
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yes! the logo is pretty smal and has a lot of white lines in it. Althought the yellow in the logo is flickering the most and at one particular point where the yellow, white and blue meet, is the maximum flicker! on my screen it’s still tolerable but on the other tv screen its a lot more and more obvious. Although after trying all the options only the the DeFlicker filter makes a difference, but still eating up the logo a bit :-((
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It makes a difference to view the image on a monitor with composite and component inputs. The same image on composite is likely to have chroma crawl and look more ‘jittery’ than the same image input via component. That is perhaps why the LCD screen at your end it better than the CRT at the client end.
Fine lines, particularly reds, yellows & pinks seem to be the worst offenders in this regard.
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Actually there are graphic designs that just can’t be reproduced accurately on video, and from your description this is such a case.
Make very sure (with the help of the scopes in FCP) that your luma is not over the top and that chroma saturation is not exceeding the targets. Instead of the flicker filter apply a mild vertical blur and carefully increase it’s value from something very small until flickering stops (this will preserve more of the logo’s detail). There is such a filter now in FCP 5.1.2 (and there always was one in AE, if you have it).
Finally, don’t write your video out for compression as DV25, use uncompressed, DV50 or Photo-JPEG@75% to get it over into Compressor. If you experience color/contrast shifts, use BitVice for encoding.
Regards,
Uli
Author of “DVDs gestalten und produzieren”, a book on professional DVD-authoring in German.
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