Purr 04. A fm wave at 80 Hz, originating from Subway Tunnel. Recorded in a corridor environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0201 — Purr 04
ID#201
Rarity
X-HI:12%
Frequency
80 Hz
X-HI:6%
Wave Type
FM
EX:4%
Resonance
Cold
X-HI:10%
Era
1950s
X-HI:5%
Origin
Subway Tunnel