what is video crossbar??

[jigc]

hi,

could anyone explain to me what is video crossbar??

i'm using BT878 tv tuner card with iulab driver.

when i preview with iuvcr (or virtualvcr), there is no sound. i need to unmute "line in" at volume control to get the sound. but dscaler plays without this problem.

i search the web, someone blames to sound card driver. i've installed the lastest sound card driver but the problem is still there.

then i play around with this video crossbar, but i'm not familiar with the setting.

is this problem related with it?

any input is appreciated.

[Arachnotron]

Try here (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/htm/workingwithcrossbars.asp)
It is an explanation for C++ programmers (which I am not yet :D).

It's a filter which let you play with the routing of datastreams in a video device that has more than one inputs.

i need to unmute "line in" at volume control to get the sound.

That is as it should be. Since sound from the TV card is routed to the line-in using a cable at the back of the PC, having line-in muted would normally stop any sound :)

Normally, for problems like this playing with the crossbar does not solve it.

[jigc]

hi, Arachnotron

thanx for the info.

ok, unmute the line-in is the way to go.