Sigmund recently had heart surgery and they replaced one of his heart valves. It 'ticks' rather loudly, though. Leo says that Dr. Mom says it's not unusual for mechanical heart valves to have an audible ticking noise. Leo says that some mics, mostly condenser mics, are very sensitive and can pick up the faintest of sounds. That's why most studios use dynamic mics. They don't pick up a lot of external sounds. But condenser mics can be tuned to not pick up that. Sigmund should find that in his Yeti settings. He can also "declick" the audio recording through recording software. It's usually used to declick the recording of records, but it should work for him as well. Sigmund should check out Magic Audio.