Patter 21. A sine wave at 20 Hz, originating from Forest Edge. Recorded in a membrane environment, era: 1920s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #3683 — Patter 21
ID#3683
Rarity
LO:67%
Frequency
20 Hz
EX:4%
Wave Type
Sine
X-HI:13%
Resonance
Brittle
X-HI:6%
Era
1920s
EX:4%
Origin
Forest Edge