Plunk. A sawtooth wave at 80 Hz, originating from Subway Tunnel. Recorded in a corridor environment, era: 1920s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3504 — Plunk
ID#3504
Rarity
LO:66%
Frequency
80 Hz
X-HI:6%
Wave Type
Sawtooth
X-HI:9%
Resonance
Warm
X-HI:11%
Era
1920s
EX:4%
Origin
Subway Tunnel