Drone 57. A sawtooth wave at 2400 Hz, originating from Subway Tunnel. Recorded in a vacuum environment, era: 1960s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #0947 — Drone 57
ID#947
Rarity
LO:51%
Frequency
2400 Hz
EX:4%
Wave Type
Sawtooth
X-HI:9%
Resonance
Warm
X-HI:11%
Era
1960s
X-HI:6%
Origin
Subway Tunnel