Purr 38. A triangle wave at 220 Hz, originating from Subway Tunnel. Recorded in a cathedral environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #5482 — Purr 38
ID#5482
Rarity
LO:75%
Frequency
220 Hz
X-HI:8%
Wave Type
Triangle
X-HI:8%
Resonance
Soft
X-HI:8%
Era
1960s
X-HI:6%
Origin
Subway Tunnel