fSpy
fSpy is open source software and totally free to download and use. But just in case you think it makes sense to pay for fSpy, here's a donate button! Pay as much or as little as you want.
For users seeking a "hot" or high-demand solution for macOS audio management, by Rogue Amoeba is widely considered an essential utility that replaces the standard system sound settings with a more powerful, menu-bar-based interface. Key Features & Performance