Chosen Solution
On the main page of the preference for Boom 2 app is a toggle to ‘Play Feedback’ when Boom audio level is changed. Each time you increase/decrease you get an annoying “boop”. Doesn’t matter if you have it toggled or not, it won’t stop. How do I disable that boop?
We mostly focus on hardware issues here. Are you running the newest version of the app? You might want to contact the app maker.