Black Murmur. A sawtooth wave born in Urban Grid, resonating since 1990s. Captured at 40 Hz in a underwater space. One of 350 Legendary echoes — sounds that almost escaped recording.
Name
ECHO #0357 — Black Murmur
ID#357
Rarity
HI:20%
Frequency
40 Hz
X-HI:5%
Wave Type
Sawtooth
X-HI:9%
Resonance
Crystalline
X-HI:5%
Era
1990s
X-HI:9%
Origin
Urban Grid