Alsoher room's life-support hum; the fans; the scrubber; the laptop fan; the fridge hum
The life-support hum under every scene in Noor's room, noticed only when it stops at 21:05 and when the fans come back after Rev B; it returns as Episode 3's laptop fan, stopping dead at 20:00.000, and as a fridge humming on A in two dark kitchens.
A sound map drawn from the lore: where the hum runs in each episode and where it stops (E2's scrubber from 3:31 to 21:05 and back at 28:15, E3's laptop fan dead at 20:00.000, the fridges on A). A diagram, not a recording.Placeholdermade as a quick reference, not in any episode yet, free to change.{made 2026-10-23 by lore-placeholders; not in any episode; free to change}edit
Nobody in Episode 2 mentions the hum until it is gone. It is the scrubber keeping Noor alive, pitched on the score's tonic, sagging when the light steps down and dropping a semitone under the fleet's load; at 21:05, when her power is isolated, it simply stops. After Rev B the fans spin up and someone in the chat types "the fans. you can hear the fans". Episode 3 does the same with a laptop fan whose pitch follows the CPU, dead at the 20:00 turn and back for the epilogue; its end black has a fridge humming on A, and so does Episode 4's kitchen. A hum is a household's life support.
What7 lines
On screenUnder every room scene in Episode 2 from 03:31; it sags as the light steps down and drops under the fleet's load. {E2 03:31; 11:05; 20:03}edit
On screenIt returns a semitone low under the fleet's load. {E2 20:03.5}edit
RunningIt is the scrubber, on F1 (43.65 Hz), the tonic of the score. {E2 numbers.json}edit
On screenIt stops at 21:05 when HAB 3's power is isolated (STEP 4 OF 9). {E2 21:05}edit
On screenThe fans spin back up after Rev B; Noor: "Thank you." {E2 28:15-28:22}edit
On screengravy_baron: "the fans. you can hear the fans" {E2 28:42}edit
On screenIt runs under Noor's slowing heartbeat in the end black. {E2 30:01-30:20}edit
On screenIts forerunners: the caller's phone band carries a fridge hum, and the 30:20 end black a faint hum on the bell's D. {E1 04:17; 30:00-30:20}edit
EggThe laptop fan, its pitch following the CPU, the hum of the whole first half, stops dead at 20:00.000 and is back at 28:25. {E3 20:00; 28:25; E3-EGG-29}edit
RunningMeasured at zero from 20:02.2. {E3-EGG-29}edit
On screenThe end black's fridge hum on A (55 Hz) under seventeen thumps. {E3 30:00-30:20; Q-E3-31}edit
Running(Revision 2 plan) The basement rig's heat and Rosie's cold room are one fact: save_power_for_renders.sh set the house heating to 16 °C. {E3 rev2 plan v0 §2-§3}edit
OpenWhether Episode 3's dark kitchen and Episode 4's are the same fridge. {E4 S28; E3 30:00-30:20}edit
IdeaA hum is a household's life support (HAB 3's air, the basement rig, Rosie's fridge); a later episode stops the house's hum and does not bring it back. {eggs sweep}edit
IdeaThe series' last end black, if it ever ends, has no heartbeat: only the hum, and a light left on. {eggs sweep}edit