Aaaaah.
Ok, the errand issue here is digital silence, as the consistent low for loudness, which I presume is getting clamped to 157.22659301757813.
So in that case I can easily see how there would be a range of zero for potentially a bunch of “extreme” parameters in this way (min/max of certain values in particular, but I guess all those nyquist/2 vibe-ing as well).