Sigh. A chaotic wave at 142 Hz, originating from Urban Grid. Recorded in a vacuum environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1710 — Sigh
ID#1710
Rarity
MID:45%
Frequency
142 Hz
X-HI:9%
Wave Type
Chaotic
EX:2%
Resonance
Cold
X-HI:10%
Era
2000s
X-HI:8%
Origin
Urban Grid