16 in one, 32 in the other, but I'm not doing video processing either. Just music.

Task Manager has a Performance tab that will easily show you whether your RAM is getting taxed or not, and it comes built in with Windows. Right-click in the task bar and take a look.
If your RAM is at 90% or more, may want to think about it .. if your hard drive starts stressing when the RAM gets tight you definitely want to think about increasing RAM (the swap file is working hard to keep RAM supplied, meaning RAM is now offloading and reloading data from the drive which slows everything down).

A quick way to check where any bottlenecks are happening is the free Task Manager in Windows.
It will also show which processes are eating up the RAM or processor very quickly, so a good tool to know about.

I do not work here, but the benefits are still awesome
Make your sound your own!