Static. A pulse wave at 528 Hz, originating from Subway Tunnel. Recorded in a membrane environment, era: 2020s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1551 — Static
ID#1551
Rarity
X-HI:13%
Frequency
528 Hz
X-HI:6%
Wave Type
Pulse
X-HI:7%
Resonance
Brittle
X-HI:6%
Era
2020s
X-HI:6%
Origin
Subway Tunnel