Moan 87. A fm wave at 220 Hz, originating from Subway Tunnel. Recorded in a chamber environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #4541 — Moan 87
Owner
0x47Ac1425750562c369E1Ea653E1A4768ee6de4fa
ID#4541
Rarity
MID:27%
Frequency
220 Hz
X-HI:8%
Wave Type
FM
EX:4%
Resonance
Soft
X-HI:8%
Era
1950s
X-HI:5%
Origin
Subway Tunnel