Correct terminology for HD picture issue: "shimmering" - AVS Forum
Forum Jump: 
 
Thread Tools
post #1 of 5 Old 11-21-2012, 07:27 AM - Thread Starter
Senior Member
 
bizwiz41's Avatar
 
Join Date: May 2010
Location: New Hampshire
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 17
I have an older Hitachi plasma TV (42 HDS52A) that has a picture issue of a "shimmer" effect on items such as automobile chrome, grass, patterns on clothing, around hairlines on people, etc.

I am first trying to determine the correct "term" for this effect or issue. Is it "shimmer", or I've heard "crawling moss". I should note that I only seem to see this when viewing HD television broadcast. I use Comcast cable with the Pace RNG110 box.

I was wondering if switching from the HDMI cable connection to a component cable connection might help the issue. Any other suggestions will be greatly appreciated.

Thanks!

Sometimes I have to remind myself that I bought all this "stuff" to enjoy it!
bizwiz41 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 11-24-2012, 05:47 AM - Thread Starter
Senior Member
 
bizwiz41's Avatar
 
Join Date: May 2010
Location: New Hampshire
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 17
bump, still hoping to find out more about this issue....

Sometimes I have to remind myself that I bought all this "stuff" to enjoy it!
bizwiz41 is offline  
post #3 of 5 Old 11-24-2012, 05:50 AM
AVS Special Member
 
primetimeguy's Avatar
 
Join Date: Sep 2005
Location: St. Paul, MN
Posts: 3,741
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 101 Post(s)
Liked: 135

Is this from your normal seating distance or up close?  If from your normal seating distance it is probably compression artifacts of the source, nothing you can do about it.  It it is upclose it still could be that but may also be dithering of the plasma pixels but shouldn't be a problem from your normal seat.

primetimeguy is online now  
post #4 of 5 Old 11-25-2012, 07:58 AM - Thread Starter
Senior Member
 
bizwiz41's Avatar
 
Join Date: May 2010
Location: New Hampshire
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 17
Quote:
Originally Posted by primetimeguy View Post

Is this from your normal seating distance or up close?  If from your normal seating distance it is probably compression artifacts of the source, nothing you can do about it.  It it is upclose it still could be that but may also be dithering of the plasma pixels but shouldn't be a problem from your normal seat.

The effect is noticeable from the normal seating distance (7-8 ft). I have heard about things like the "compression artifacts" you reference, but I am wondering what that is. I have read that it is often the "source", or cable tv signal. I am using HDMI cable, and not to open the "cable pricing debate", I switched from my (very) expensive Monster cable to a generic cable with absolutely no picture difference.

I must admit that I did notice the effect on my neighbor's LED (Samsung) TV, but not to the degree I see on my set. The other sets in my home are CRT HDTVs, connected with component cables to Comcast boxes.

I'm wondering if changing picture settings, or switching to component cables may help. It does get annoying, but perhaps I have become too sensitive to the issue...

Thanks for your reply and help!

Sometimes I have to remind myself that I bought all this "stuff" to enjoy it!
bizwiz41 is offline  
post #5 of 5 Old 11-29-2012, 07:19 AM - Thread Starter
Senior Member
 
bizwiz41's Avatar
 
Join Date: May 2010
Location: New Hampshire
Posts: 360
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Liked: 17
I hope this helps someone with the same issue. I was able to reduce/eliminate the "shimmer" through a couple of settings adjustments.

First, I adjusted "Noise Reduction" on the TV menu from "off" to "high"; I immediately noticed an improvement.
Next, I adjusted the Sharpness setting from 75% down to 40%, this made a huge difference. After reducing the sharpness setting, I went back and turned "Noise Reduction" off.

Again, I hope this helps someone.

Sometimes I have to remind myself that I bought all this "stuff" to enjoy it!
bizwiz41 is offline  
Reply Plasma Flat Panel Displays

User Tag List

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