Fade 91. A triangle wave at 142 Hz, originating from Subway Tunnel. Recorded in a anechoic environment, era: Timeless. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #4248 — Fade 91
ID#4248
Rarity
LO:74%
Frequency
142 Hz
X-HI:9%
Wave Type
Triangle
X-HI:8%
Resonance
Soft
X-HI:8%
Era
Timeless
EX:1%
Origin
Subway Tunnel