Let’s say for a quality check on a gearmotor, you want to check whether everything has been built correctly. If correct, the gearmotor should make a low humming noise, if not, it will make loud noise with a different profile.
What is a device that can analyze the sound and tell you “good” or “bad”?
By the way, there is ambient noise too.
How do I need to buy to implement something like this? thanks