Growl. A sine wave at 528 Hz, originating from Urban Grid. Recorded in a cave environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2474 — Growl
ID#2474
Rarity
MID:46%
Frequency
528 Hz
X-HI:6%
Wave Type
Sine
X-HI:13%
Resonance
Cold
X-HI:10%
Era
1950s
X-HI:5%
Origin
Urban Grid
X-HI:9%