Drone 37. A square wave at 220 Hz, originating from Subway Tunnel. Recorded in a chamber environment, era: 2000s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3501 — Drone 37
Owner![]()
0x0b35374D671D77e1810EE65e8228e9464135c919
ID#3501
Rarity
LO:54%
Frequency
220 Hz
X-HI:8%
Wave Type
Square
X-HI:10%
Resonance
Dense
X-HI:6%
Era
2000s
X-HI:8%
Origin
Subway Tunnel