Growl. A triangle wave at 20 Hz, originating from Urban Grid. Recorded in a cave environment, era: 1970s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2681 — Growl
ID#2681
Rarity
MID:44%
Frequency
20 Hz
EX:4%
Wave Type
Triangle
X-HI:8%
Resonance
Crystalline
X-HI:5%
Era
1970s
X-HI:6%
Origin
Urban Grid