Using Avia DVD for 1080p? - AVS Forum | Home Theater Discussions And Reviews
Baselworld is only a few weeks away. Getting the latest news is easy, Click Here for info on how to join the Watchuseek.com newsletter list. Follow our team for updates featuring event coverage, new product unveilings, watch industry news & more!


Forum Jump: 
 
Thread Tools
post #1 of 5 Old 12-12-2012, 12:16 AM - Thread Starter
Advanced Member
 
Gig103's Avatar
 
Join Date: Aug 2003
Location: Gilbert, AZ
Posts: 765
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Hi all,

I'm finally getting a 1080p display device (new JVC RS46) and realized just now that my only display disc is the old Avia DVD. For purposes of basic color adjustment (tint, brightness) and patterns for alignment and sharpness (for zooming and my anamorphic lens) do I need to get something new or is it okay to trust the 480p upconversion long term? (I say long term since I'll use what I have this weekend but can always buy the right tool for the job and make adjustments).

Thanks
Gig103 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 12-12-2012, 04:10 AM
AVS Special Member
 
airscapes's Avatar
 
Join Date: Dec 2008
Location: Philadelphia
Posts: 5,016
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 165 Post(s)
Liked: 174
Download and burn the free AVS 709 disk
I burns to normal DVD but requires a BR player to play on.
http://www.avsforum.com/t/948496/avs-hd-709-blu-ray-mp4-calibration/0_100

Doug
Planar PD8150 paired with a Dalite HP 2.8 110"
http://www.airscapesart.com

 
airscapes is offline  
post #3 of 5 Old 12-26-2012, 11:25 AM
Advanced Member
 
RiverSide's Avatar
 
Join Date: Mar 2001
Location: Oklahoma
Posts: 532
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Liked: 37
So will a calibration performed by a lower res DVD be inaccurate? are there any quick explanations one can read to understand why?

Insert pithy comment here
RiverSide is offline  
post #4 of 5 Old 12-27-2012, 09:04 AM
AVS Special Member
 
Rolls-Royce's Avatar
 
Join Date: Apr 2003
Location: Victorville, CA
Posts: 2,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 51 Post(s)
Liked: 74
Quote:
Originally Posted by RiverSide View Post

So will a calibration performed by a lower res DVD be inaccurate? are there any quick explanations one can read to understand why?

Because the AVIA DVD is encoded with an eye toward playback under Rec 601 specs (used for standard definition), and HD such as 1080p is meant to be played back under Rec 709. Although they both use D6500 as a white point, there are differences in luminance for red, green, and blue between the two. For example, a scene encoded for playback under Rec 601 will have brighter greens when played back under Rec 709. Whether what you get is correct will depend on how your player and/or TV handle the conversion.

Also, if you are planning to use AVIA for grayscale adjustment, be advised that the encoder they used introduced a very slight magenta tinge to some grayscale patterns. IIRC, it isn't bad enough to be visible but can impact meter readings a bit.

...Royce...

"I never drink...wine."
Bela Lugosi, DRACULA, 1931
Rolls-Royce is offline  
post #5 of 5 Old 12-31-2012, 10:57 PM
Advanced Member
 
RiverSide's Avatar
 
Join Date: Mar 2001
Location: Oklahoma
Posts: 532
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 56 Post(s)
Liked: 37
Quote:
Originally Posted by Rolls-Royce View Post

Because the AVIA DVD is encoded with an eye toward playback under Rec 601 specs (used for standard definition), and HD such as 1080p is meant to be played back under Rec 709. .

Thanks for the excellent explanation.. I guess I have to download the AVS disk now..

Insert pithy comment here
RiverSide is offline  
Sponsored Links
Advertisement
 
Reply Display Calibration

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off