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What is DNR? (Dolby Noise Reduction)

Old 02-22-01, 11:48 PM
  #1  
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My DVD player has this option...what exactly is it.
and while we're at it, what's Video EQ? A black level thing?
My DVD Player is Sony, BTW
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Old 02-23-01, 11:51 AM
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Here's the info from Dolby's site: http://www.dolby.com/cassette/overview.html

Basically it is a way to reduce noise (e.g., hiss) from recordings, but I have no idea why you'd need this for DVD audio. Are you sure this is an option? I have heard of Cinema Re-EQ before, which reduces the treble inherent in soundtracks to better suit them for a small environment like home theater, and Dynamic Range Control, which limits the volume of certain effects and music for nighttime viewing, but I have never heard of the need for Noise Reduction, unless it is to reduce hiss in old mono soundtracks... If this is an option, I would turn it off unless you come across a DVD that desperately reeks of hiss.

Also found this info at E-town: http://equip.zdnet.com/theater/dvd/f...index_2_4.html
"Video EQ function allows you to have reduced line artifacts and a sharp picture. Video EQ includes picture, brightness, color and sharpness controls that operate in the digital domain. One upward click on the on-screen Sharpness slider is enough to bring some snap back into anamorphic discs. This does introduce a slight amount of edge enhancement, or "ringing," into the picture..."
Sounds like a black-level expander and a sharpness control. Not sure if either are worthwhile, since they appear to detract from a "pure" picture, but you could experiment with it and see if you like it.

[Edited by DigIt on 02-23-01 at 09:56 AM]
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Old 02-23-01, 12:19 PM
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It's not Dolby Noise Reduction, it's Digital Noise Reduction. It's a feature for removing some of the artifacts left on the picture from the compression of the video. It works, but gives you a softer overall picture. Dolby Noise Reduction is the Dolby system for removing audio hiss from analog recordings. It has nothing to do with DVD.

The Video EQ is simply a set of preset video settings, (Sharpness, Brightness, DNR, etc.) you can scroll through for enhancing the picture quality. I personally find them useless and think they should always be left off.
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Old 02-23-01, 12:28 PM
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Crap. I meant to put Digital. I need to go to bed earlier at night.
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