Drone 06. A pulse wave at 20 Hz, originating from Subway Tunnel. Recorded in a underwater environment, era: 1920s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1292 — Drone 06
ID#1292
Rarity
HI:17%
Frequency
20 Hz
EX:4%
Wave Type
Pulse
X-HI:7%
Resonance
Hollow
X-HI:5%
Era
1920s
EX:4%
Origin
Subway Tunnel