Wake. A sine wave at 528 Hz, originating from Urban Grid. Recorded in a corridor environment, era: 2020s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2014 — Wake
ID#2014
Rarity
MID:36%
Frequency
528 Hz
X-HI:6%
Wave Type
Sine
X-HI:13%
Resonance
Hollow
X-HI:5%
Era
2020s
X-HI:6%
Origin
Urban Grid
X-HI:9%