Moving Hum. A noise wave born in Subway Tunnel, resonating since 1980s. Captured at 528 Hz in a vacuum space. One of 350 Legendary echoes — sounds that almost escaped recording.
Name
ECHO #2379 — Moving Hum
ID#2379
Rarity
X-HI:13%
Frequency
528 Hz
X-HI:6%
Wave Type
Noise
X-HI:6%
Resonance
Absolute
EX:2%
Era
1980s
X-HI:8%
Origin
Subway Tunnel