Yankee Chronicler mentioned: The OP wrote that it is a massive, multi-Tale assembly facility. He didn't say the amount of stories or what the floor spot of the other tales is, and that would create a variation. The mixer makes the audio-range difference between the frequencies of the two oscillators https://finnxvgrj.blogdun.com/39119146/helping-the-others-realize-the-advantages-of-mezzanine-barriers