Snap 47. A triangle wave at 20 Hz, originating from Subway Tunnel. Recorded in a cathedral environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2818 — Snap 47
ID#2818
Rarity
MID:28%
Frequency
20 Hz
EX:4%
Wave Type
Triangle
X-HI:8%
Resonance
Dense
X-HI:6%
Era
1960s
X-HI:6%
Origin
Subway Tunnel