Rattle 21. A sine wave at 12000 Hz, originating from Forest Edge. Recorded in a corridor environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0911 — Rattle 21
ID#911
Rarity
MID:35%
Frequency
12000 Hz
EX:2%
Wave Type
Sine
X-HI:13%
Resonance
Metallic
EX:5%
Era
2000s
X-HI:8%
Origin
Forest Edge