Blip. A noise wave at 888 Hz, originating from Subway Tunnel. Recorded in a chamber environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0407 — Blip
ID#407
Rarity
MID:41%
Frequency
888 Hz
EX:3%
Wave Type
Noise
X-HI:6%
Resonance
Hollow
X-HI:5%
Era
2000s
X-HI:8%
Origin
Subway Tunnel