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Jeff Kosmicki
analog output levels
on Sep 1, 2009 at 8:19:54 pm

I can't seems to get the analog output levels at 7.5 IRE. Switching the playback options/analog output between Component SMPTE and Component Betacam NTSC, does not change the output image at all, black is always at 0 IRE. (component output is going into a Videotek waveform). This is the same in Premiere, AE, Photoshop and Machina. How do I get 7.5 black levels?
thanks.

Jeff Kosmicki
http://www.toyraygun.net


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Tim Kolb
Re: analog output levels
on Sep 2, 2009 at 2:42:25 pm

When you run out bars, is the pluge where it's supposed to be, or does it center at 0 as well?



TimK,
Director, Consultant
Kolb Productions,


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Jeff Kosmicki
Re: analog output levels
on Sep 2, 2009 at 3:52:05 pm

Tim,
Yes, pluge centers at 0.

Jeff Kosmicki
http://www.toyraygun.net


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Tim Kolb
Re: analog output levels
on Sep 4, 2009 at 12:52:50 pm

What happens when you switch to NTSC-J?

Have you attempted to reinstall the drivers? Any changes to the system lately? Have you output before with proper black levels?

I assume you've confirmed the scope is calibrated.

I won't be near my workstation for a while...so I'm trying to recall the Machina settings available...

I don't think that pedestal is independently switchable...it's attached to the setting.

TimK,
Director, Consultant
Kolb Productions,


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Jeff Kosmicki
Re: analog output levels
on Sep 4, 2009 at 1:37:00 pm

Switching to NTSC-J does not change anything. In fact switching between the 3 settings, NTSC, NTSC-J and SMPTE does not change anything, swithcing to RGB blanks out my monitor (of course) so I know something is happening.
This is a new LHi install on a system that was running a different card. Nothing has changed in the suite except the new LHi and Nvidia card. I've had a lot of trouble getting the Xena to work properly, and have installed and uninstalled the drivers many times over a week, turns out switching PCIe slots made all the difference.
Scope is definitely calibrated, but I will double-check everything else in suite and make sure something didn't get switched.
Thanks for the advice.


Jeff Kosmicki
http://www.toyraygun.net


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Tim Kolb
Re: analog output levels
on Sep 8, 2009 at 1:13:25 am

That's odd...obviously the blacks should change between NTSC and NTSC-J.

Are you running CS4 or CS3?

If you are running CS3, can you put in drivers from one version back?



TimK,
Director, Consultant
Kolb Productions,


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Jeff Kosmicki
Re: analog output levels
on Sep 9, 2009 at 2:57:53 pm

I worked with AJA tech support and they were able to reproduce the problem and confirm the bug. I don't know if it is only LHi or all of the Xena line.


Jeff Kosmicki
http://www.toyraygun.net


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