The Hum

TW-075 cannot be contained. A registry of regional hearers is maintained. Long-term hearers are monitored for pitch-change reports. Correlation research between pitch changes and significant events is ongoing.

TW-075 is a low-frequency sound, approximately 56 Hz, audible to approximately 4% of the population in a specific geographic region in ████████. It is always present. No source has been identified. The sound is not detectable by recording equipment. Those who hear it describe it as omnidirectional, felt as much as heard. Long-term hearers — those who have lived in the area for more than 5 years — develop a secondary sensitivity: they can detect when the hum changes pitch, which occurs approximately three times per year. Changes in pitch have been correlated with subsequent significant events in the region.

TW-075 has been documented by locals and researchers for decades under the name 'The Regional Hum.' M.A.L.I.C.E reclassified it as an anomaly following the discovery of the pitch-change correlation.

No incident reports on file.