Shriek 85. A square wave at 220 Hz, originating from Subway Tunnel. Recorded in a cathedral environment, era: 2010s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3648 — Shriek 85
Owner![]()
0x8730814f1bCFfa3418A4853d229677506A1342cE
ID#3648
Rarity
X-LO:77%
Frequency
220 Hz
X-HI:8%
Wave Type
Square
X-HI:10%
Resonance
Metallic
EX:5%
Era
2010s
X-HI:7%
Origin
Subway Tunnel