A sound file from the attack on the U.S. Embassy in Cuba has now been made available on the Internet. I did a spectral analysis of this file using my Matlab GUI scripts. The sound source is still unknown. The attacks have caused hearing, cognitive, visual, balance, sleep and other problems for embassy personnel.
Here is a quick look paper: Cuba_sonic_analysis.pdf
Here is the sound file: Cuba_sonic.mp3 Turn up the speaker volume to hear the sound.
– Tom Irvine