Hum 48. A sawtooth wave at 40 Hz, originating from Deep Ocean. Recorded in a anechoic environment, era: 1990s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1037 — Hum 48
ID#1037
Rarity
MID:43%
Frequency
40 Hz
X-HI:5%
Wave Type
Sawtooth
X-HI:9%
Resonance
Phosphoric
EX:2%
Era
1990s
X-HI:9%
Origin
Deep Ocean