Thanks Wayne. As much as I’d like to claim to be a guru when it comes to things like this, the reality is that I got the info from one of the many Vegas forums I’m on. If I could remember who it was that originally posted this, I’d happily give them credit.
BTW, here are two more lines to add to the above post. Once again, the author is unknown.
DC High Pass Filter On (this operates at <=3Hz and takes DC bias out of the mix);
Bandwidth Low Pass Filter On (this takes aliasing noise at >20kHz out of the encode).