Null Pocket Survey — Build Notes
This one came from the splice table hallway. Surveyed it for about a week. The floor at 48 Hz does not remember — it compresses. That became the sub. Tuned the kick to land on the third axial mode, let the room carry the transient. The reverb is 1.8 seconds of structural decay — no gated verb, just the hallway own signature. Named it Null Pocket Survey. Second pass tightened the null at 58 Hz and the floor started answering. Not a finished room yet. But the load-bearing elements are in.