Rattle 01. A square wave at 20 Hz, originating from Subway Tunnel. Recorded in a open air environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3960 — Rattle 01
Owner![]()
0x10B0C9578D034055d31a6E7C77882dC91a9524e5
ID#3960
Rarity
MID:29%
Frequency
20 Hz
EX:4%
Wave Type
Square
X-HI:10%
Resonance
Crystalline
X-HI:5%
Era
1960s
X-HI:6%
Origin
Subway Tunnel