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Downconvert Quality

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Peter Corbett
Downconvert Quality
on Feb 19, 2007 at 4:13:24 am

Just curious as to what the downconversion quality is like on the Xena LHe card. I know AJA make great stand-alone convertors but I'm just curious at seeing if Xena might be a better solution for integrating HD source material into a SD workflow.

Specifically, what is the aliasing like? Is it comparable to say the downconverted output of DVCPROHD deck?

Thanks in advance.
Peter

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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Tim Kolb
Re: Downconvert Quality
on Feb 19, 2007 at 4:38:17 am

I haven't had a lot of experience with DVC ProHD RT downconversions...but I've been impressed with my LH's quality in that respect when I've had a need for it.



TimK,
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Kolb Productions,

Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net


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Peter Corbett
Re: Downconvert Quality
on Feb 19, 2007 at 10:07:22 pm

Thanks Tim, I notice AJA describe the Xena 2K as providing "broadcast-quality downconversion", but the LHe doesn't have the "broadcast" description in it's downconversion capabilities. I wonder if this means it is less than ideal?

Peter

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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AJA Xena Support
Re: Downconvert Quality
on Feb 20, 2007 at 2:24:52 am

Peter,

the Xena LH/LHe cards also do down conversion using hardware broadcast quality. This is an unfortunate communication mistake that we'll be sure to clarify. Thanks for pointing it out.

AJA Xena Support


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Peter Corbett
Re: Downconvert Quality
on Feb 20, 2007 at 9:20:24 pm

Many thanks for the reply. But how in your opinion does the aliasing and general downconverted quality look compared to that coming out of a HDCAM or DVCPROHD deck?

Peter

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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AJA Xena Support
Re: Downconvert Quality
on Feb 20, 2007 at 10:23:46 pm

Peter,

Im quite certain you'll be pleased with the quality of the downconversion. I would be fairly surprised if you could tell the difference between the downconvert from Xena LH, and the downconvert from a high end deck.

AJA Xena Support


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Peter Corbett
Re: Downconvert Quality
on Feb 20, 2007 at 10:28:32 pm

Great! That's all I wanted to hear.

Cheers,
Peter

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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Tim Kolb
Re: Downconvert Quality
on Feb 20, 2007 at 11:09:32 pm

[Peter Corbett] "Great! That's all I wanted to hear."


Me too... :-)

Seriously, I think this may be one of the AJA cards' sweetest spots...at least from what else I've personally seen out there.



TimK,
Director,
Kolb Productions,

Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net


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RedEditor
Re: Downconvert Quality
on Feb 21, 2007 at 8:26:31 am

We use our LH card for HDCAM downconversions to SDI for commercial broadcast playback - in a word "beautiful".

Cheers
RED


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Peter Corbett
Re: Downconvert Quality
on Feb 21, 2007 at 10:27:33 am

Nice to get another good opinion, Red.

Cheers,
Peter

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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Tim Kolb
Re: Downconvert Quality
on Feb 21, 2007 at 2:37:15 pm

[Peter Corbett] "Nice to get another good opinion, Red."


Yes, I suppose that having my noggin in the header makes me appear a little biased...

:-)




TimK,
Director,
Kolb Productions,

Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net


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Peter Corbett
Re: Downconvert Quality
on Feb 21, 2007 at 10:02:18 pm

No Tim, I've never though of your comments as biased. Now as for some other noggins on other forums, well that's another story. ;-0

Peter Corbett
Powerhouse Productions
http://www.php.com.au


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