Ghost. A sawtooth wave at 4096 Hz, originating from Subway Tunnel. Recorded in a cathedral environment, era: 2020s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #4252 — Ghost
ID#4252
Rarity
X-HI:13%
Frequency
4096 Hz
EX:3%
Wave Type
Sawtooth
X-HI:9%
Resonance
Viscous
EX:3%
Era
2020s
X-HI:6%
Origin
Subway Tunnel