Murmur 36. A am wave at 16000 Hz, originating from Subway Tunnel. Recorded in a membrane environment, era: Pre-War. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2015 — Murmur 36
ID#2015
Rarity
HI:22%
Frequency
16000 Hz
EX:1%
Wave Type
AM
EX:5%
Resonance
Harsh
X-HI:8%
Era
Pre-War
EX:3%
Origin
Subway Tunnel