Change the volume and output device for individual apps. Adjust your Mac’s audio device settings and levels instantly, from anywhere. Even apply built-in and third-party audio effects to any audio on your Mac. It’s all possible right from your menu bar, with SoundSource. This is truly powerful audio control.
For years, if I need an audio utility app, I always go to Rogue Amoeba first. They make great quality apps and chances are they make something that will get the job done. The company’s newest is called SoundSource, but check out the other apps while you’re there.