I want something that just takes whatever the PC mic hears, either a default hardware mic or a plugged in mic, and basically makes a Milkdrop type of visual from it in real time. Any suggestions are welcome.
Edit: Im looking to have visuals while my friends and I jam
Touchdesigner as someone else mentioned will require a lot of work on your end but you can make pretty much anything you could think of really.
You could also try Synesthesia or there is a free visualiser on steam. If you want to go more down the VDJ route there are more specific programs that can do that but that can also be done from within touch designer. Resolume is one of the most popular ones and this guy is great to watch to get started.