ACX how to fix low rms

Setting up your audiobook with ACX, but it looks like your RMS (what does that even mean?!) is too low? And you're staring at a wall of words instead of a help manual? Well, I'll walk you through, step-by-step, how to fix your files right in Audacity, take them through fre:ac to reformat them, and get back on track with your audiobook.