Is there a simple way to do this? I've been manually processing mid and side channels into left and right, using Audacity. Is there a plugin that can allow me to go the other way? I have enough (rudimentary) knowledge to work with Audacity, but I have no experience with other software. I'm just thinking about how I would process left and right back into mid-side, if I had to. I'm working with an AT4050st, which is a mid-side mic with built-in mid-side processing. Thanks to all who can help!