Keen 28. A square wave at 20 Hz, originating from Subway Tunnel. Recorded in a chamber environment, era: 1990s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #4779 — Keen 28
Owner![]()
0x08D5da00FA46Dd187032a4fd75e7747893420871
ID#4779
Rarity
LO:50%
Frequency
20 Hz
EX:4%
Wave Type
Square
X-HI:10%
Resonance
Harsh
X-HI:8%
Era
1990s
X-HI:9%
Origin
Subway Tunnel