How can I make my CPU not work as hard? I'm rendering edited footage using Blender, meaning everything is an emission shader with basic textures, so the samples are only at 1. However, the video is over 5500 frames long, and for some reason, my computer hums really loud and it gets extremely annoying. I wouldn't mind if I only had to render for an hour or so, but since each frame takes an average of 2 seconds to render, and I have over 5500 frames in my animation, my computer will be screaming for over 3 hours. Is there a way I could make my CPU not work as hard? Is that even possible?

NOTE: I don't mind if it takes longer to render
Under Performance, set the number of threads to "Fixed" and just use one or two threads.  That should help keep the temperature lower and your fan slower if that's what's making the noise.  It will take proportionally longer to render though (just leave it on overnight).  Other than placing your computer in another room, that's about it.