Silt 13. A pulse wave at 440 Hz, originating from Subway Tunnel. Recorded in a cave environment, era: Future. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0111 — Silt 13
ID#111
Rarity
MID:44%
Frequency
440 Hz
X-HI:7%
Wave Type
Pulse
X-HI:7%
Resonance
Cold
X-HI:10%
Era
Future
EX:3%
Origin
Subway Tunnel