Whisper 40. A square wave at 440 Hz, originating from Pacific Basin. Recorded in a corridor environment, era: 1950s. One of 5555 echoes — sounds no one thought to save.
Name
ECHO #1326 — Whisper 40
ID#1326
Rarity
MID:49%
Frequency
440 Hz
X-HI:7%
Wave Type
Square
X-HI:10%
Resonance
Absolute
EX:2%
Era
1950s
X-HI:5%
Origin
Pacific Basin