Brine. A sine wave at 440 Hz, originating from Industrial Zone. Recorded in a cave environment, era: 1970s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3083 — Brine
ID#3083
Rarity
MID:33%
Frequency
440 Hz
X-HI:7%
Wave Type
Sine
X-HI:13%
Resonance
Dense
X-HI:6%
Era
1970s
X-HI:6%
Origin
Industrial Zone