Beep 38. A fm wave at 440 Hz, originating from Subway Tunnel. Recorded in a anechoic environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3997 — Beep 38
Owner![]()
0xAf158203848bA6368A5EB0cE4f16d513EeC3a5c2
ID#3997
Rarity
HI:24%
Frequency
440 Hz
X-HI:7%
Wave Type
FM
EX:4%
Resonance
Crystalline
X-HI:5%
Era
1960s
X-HI:6%
Origin
Subway Tunnel