Originally Posted by
mgidm86
What was this audio recorded with?
Quote:
How much of the spectrum was lost?
Kausik Sarkar, an acoustics expert and engineering professor at George Washington University said...
Originally Posted by CNN
The audio file also only "contains the audible part of the spectrum" meaning "we don't know the acoustic energy in the lower frequency (infrasound) and higher frequency (ultrasound) ranges," he said, adding that there could be lot more sound energy pounding the ears of victims in those parts...