Hey Everyone, This is my first post so bare with me... but! The facilities I am working in right now just came across with a pretty big problem last night in tech with our clear-com system. We started to randomly getting a high pitched squeal through the entire system, almost like a "fire alarm or CO2 detector running out of battery" beep in our ears. It was the worst thing in the world. At first we started to take some packs out of the system, but nothing was working, it kept randomly happening, and getting worse. The one place we did not trouble shoot was back in the pit where the conductor also has a pelt back and headset. Come to find out his pack was running through the orchestra snack back to the sound board and into the clear-com system, is this why?! The person who set this up did this and I have never seen this before. Also, we added the full pit last night and it started last night, which was the only thing we changed from two nights ago and last night! Any thoughts would be greatly appreciated!