[LAU] Adding 4 chans in Faust

Hello all, I am working on creating a simple faust program to convert some things for me, but I have run into an interesting problem. I'm sure the solution is simple, but I can't seem to figure it out. How do I add two four channel variables?: import("stdfaust.lib"); a = no.noise,no.noise,no.noise,no.noise; b = no.noise,no.noise,no.noise,no.noise; process = a+b; I realize the code is silly and seemingly nonsensical, but if I'm working with variables that have 4 channels, how does one sum them together. What I really want is: Output 1 of a adds to input 1 of b Output 2 of a adds to input 2 of b ... and have this pattern continue to output 4. The compiled program should just have 4 outputs with the channels added. Thank you very much for any help, Brandon Hale