Wave 21. A square wave at 142 Hz, originating from Urban Grid. Recorded in a chamber environment, era: 2010s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3485 — Wave 21
ID#3485
Rarity
LO:57%
Frequency
142 Hz
X-HI:9%
Wave Type
Square
X-HI:10%
Resonance
Dense
X-HI:6%
Era
2010s
X-HI:7%
Origin
Urban Grid