Boom 32. A noise wave at 220 Hz, originating from Subway Tunnel. Recorded in a anechoic environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1813 — Boom 32
ID#1813
Rarity
MID:47%
Frequency
220 Hz
X-HI:8%
Wave Type
Noise
X-HI:6%
Resonance
Cold
X-HI:10%
Era
2000s
X-HI:8%
Origin
Subway Tunnel