Void 07. A sine wave at 142 Hz, originating from Subway Tunnel. Recorded in a open air environment, era: 1940s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2184 — Void 07
ID#2184
Rarity
LO:73%
Frequency
142 Hz
X-HI:9%
Wave Type
Sine
X-HI:13%
Resonance
Soft
X-HI:8%
Era
1940s
EX:4%
Origin
Subway Tunnel