Fade 72. A wavelet wave at 12000 Hz, originating from Subway Tunnel. Recorded in a cave environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #5318 — Fade 72
ID#5318
Rarity
HI:17%
Frequency
12000 Hz
EX:2%
Wave Type
Wavelet
EX:3%
Resonance
Cold
X-HI:10%
Era
1960s
X-HI:6%
Origin
Subway Tunnel