Sigh 09. A triangle wave at 528 Hz, originating from Space Station. Recorded in a cave environment, era: 2020s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2780 — Sigh 09
ID#2780
Rarity
LO:53%
Frequency
528 Hz
X-HI:6%
Wave Type
Triangle
X-HI:8%
Resonance
Warm
X-HI:11%
Era
2020s
X-HI:6%
Origin
Space Station