|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
|
|
Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
|
In Reply to: Re: digital lens posted by Todd Krieger on March 13, 2001 at 03:23:46:
To better illustrate dither in a VERY simplisitc form , is take a photo of a blue sky with red clumps , the red clumps are "visible" add a few more red pixels and scatter the clumped ones , you now have an "evenly" coloured sky that looks blue (or a slightly different shade of blue) without the clumps , the problem is , the sky is no longer the original shade of blue , so in essense you add MORE noise (red) and decorrelate the original noise (spread it around) to attain a "better" picture.
The way the lens adds dither is a bit obtrusive , it just adds a random noise to the signal ( under certian circumstances , you can hear a sort of rat-atat )
In terms of over or upsampling , no real extra info is added unless one raises the sampling rate on the AD side of things.
Dither tends to be confusing , its not really interpolation
Rodney Gold
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- Re: digital lens - Rodney Gold 03/13/0105:48:03 03/13/01 (2)
- Re: digital lens - Todd Krieger 11:33:12 03/13/01 (1)
- Re: digital lens - Craig Luna 17:19:07 03/13/01 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
