Cineform ConnectHD and VirtualDub at DVinfo.net

Peter Moore · April 4th, 2005, 09:04 PM

Interestingly, there's a distinct quality difference for any ConnectHD output from Vegas versus identical output from VirtualDub using ConnectHD (no modification, no filter).

Here's a comparison:

http://www.mooreusa.net/normal.jpg
http://www.mooreusa.net/vdub.jpg

Look at the walls in particular.

Also the file size of the vdub clip is smaller. Clearly it is not using the highest quality setting for ConnectHD. Uncompressed looks fine.

Is there any way to change the quality setting vdub uses? Vegas is using higher quality - why isn't vdub? Thanks!

Douglas Spotted Eagle · April 4th, 2005, 09:08 PM

Again, Vdub doesn't have the ability to handle the 601 colorspace. This is why we've examined other methods of frameserving, and why we offer the preset for the Color Matrix in Vegas.

Peter Moore · April 4th, 2005, 09:15 PM

But you see the comparison - colors are identical, but there is splotchiness with the vdub output. Is that due to the colorspace? I am not using the preset in Vegas and am still getting better results than Vdub.

Peter Moore · April 4th, 2005, 09:33 PM

The other problem is vdub gives me a much sharper deinterlace than Vegas' blend fields does. Any other way to deinterlace besides using blend fields?

April 4th, 2005, 09:04 PM	#1
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	Cineform ConnectHD and VirtualDub Interestingly, there's a distinct quality difference for any ConnectHD output from Vegas versus identical output from VirtualDub using ConnectHD (no modification, no filter). Here's a comparison: http://www.mooreusa.net/normal.jpg http://www.mooreusa.net/vdub.jpg Look at the walls in particular. Also the file size of the vdub clip is smaller. Clearly it is not using the highest quality setting for ConnectHD. Uncompressed looks fine. Is there any way to change the quality setting vdub uses? Vegas is using higher quality - why isn't vdub? Thanks!

April 4th, 2005, 09:08 PM	#2
Douglas Spotted Eagle VASST Join Date: Jan 2004 Location: Stockton, UT Posts: 5,648	Again, Vdub doesn't have the ability to handle the 601 colorspace. This is why we've examined other methods of frameserving, and why we offer the preset for the Color Matrix in Vegas. __________________ Douglas Spotted Eagle/Spot Author, producer, composer Certified Sony Vegas Trainer http://www.vasst.com

April 4th, 2005, 09:15 PM	#3
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	But you see the comparison - colors are identical, but there is splotchiness with the vdub output. Is that due to the colorspace? I am not using the preset in Vegas and am still getting better results than Vdub.

April 4th, 2005, 09:33 PM	#4
Peter Moore Trustee Join Date: Oct 2002 Location: Arlington VA Posts: 1,034	The other problem is vdub gives me a much sharper deinterlace than Vegas' blend fields does. Any other way to deinterlace besides using blend fields?