Anyone know of a way to chain two soundcards with software rather than anolog out of one into another?

What does "chain two soundcards" mean? What is this software supposed to accomplish?

I assume the output of one card being sent to the input of another card on the same system. Looks like the poster above is trying to achieve this through software, without a cable between the two cards.

Virtual Audio Cables is the most widely used such application. It can do all sorts of linking between software inputs and outputs but I don't know about addressing a hardware input. What would be the pont of such an arrangement?

Well I went with virtual audio cable to do what i wanted with the output of sound out of some games, but I don't suppose the audigy cards support just routing the audio (6 channels) through the card and doing the eax and then spitting that out in software...

I suppose I could do this with a midi interface some how but thats alright.

Little off topic, but I have posted in the matlab forums and a bunch of math forums and since I have been out of math classes for a little bit I am not quite sure how to do this. Does anyone know how to interpolate (most accurately) an hrtf over a sphere? About 256 samples long and in polar coordinates in matlab.

I suppose I have to put the random values in some kind of grid and then expand them before interpolating but not quite sure...