Thud 14. A square wave at 741 Hz, originating from Subway Tunnel. Recorded in a corridor environment, era: Future. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2092 — Thud 14
ID#2092
Rarity
MID:46%
Frequency
741 Hz
X-HI:5%
Wave Type
Square
X-HI:10%
Resonance
Hollow
X-HI:5%
Era
Future
EX:3%
Origin
Subway Tunnel