Hollow Grain. A pulse wave born in Urban Grid, resonating since 1970s. Captured at 528 Hz in a corridor space. One of 350 Legendary echoes — sounds that almost escaped recording.
Name
ECHO #0084 — Hollow Grain
ID#84
Rarity
X-HI:9%
Frequency
528 Hz
X-HI:6%
Wave Type
Pulse
X-HI:7%
Resonance
Crystalline
X-HI:5%
Era
1970s
X-HI:6%
Origin
Urban Grid