Thrum. A fm wave at 220 Hz, originating from Mountain Pass. Recorded in a cathedral environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #2535 — Thrum
ID#2535
Rarity
LO:52%
Frequency
220 Hz
X-HI:8%
Wave Type
FM
EX:4%
Resonance
Warm
X-HI:11%
Era
1950s
X-HI:5%
Origin
Mountain Pass