View Full Version : Bt8x8 tweaker options explained?


RoopeT
28th March 2003, 11:19
I'd like to find more information about the Bt8x8 tweaker options available. There a just a few too many checkboxes and very little information available of what they really do.

From Peach Smoother helpfile:
If you’re using a Bt8x8 card, you can turn off Odd and Even Luma Peaking. Turning on the card’s Horizontal Filter will reduce noise but will also lose some detail.
Where is that horizontal filter? Turning off odd and even lumapeaking : does this mean unchecking both boxes next to "enable luma peaking" ?

However, this was found from Luke's Video capture guides:
The only two options you may wish to experiment with are "Full luminance range" and "Luma peaking". Enabling the full luminance range theoretically could result in better color detail, but I couldn't see any difference. Enabling both checkboxes for Luma peaking and moving the odd/even sliders to the right has a slight sharpening effect on the video. However, the video noise is also sharpened, so you're probably better off using a sharpen filter in post-processing.

Some information about Bt8x8 tweker was also @ http://www.arstechnica.com/guide/audio-visual/videocapturing/vidcap-4.html

Is there anyone experienced with these settings? Any recommendations would be welcome.

^^-+I4004+-^^
29th March 2003, 03:30
if you're interested in details,then it comes
down to hardware......
so find bt8x8 datasheet and you'll be satisfied....
pretty interesting read...(at least was for me...)
only when you read some of that you can really
appreciate this device and see how much stuff
is integrated in that cheap chip....
(although image quality is quite nice too...hehe
especially on 768x576)

Fantasma
29th March 2003, 16:26
Maybe you can find some information :

http://www.conexant.com/products/techdocs_detail.jsp?id=10