Information sources

• Study on the sounds of blue whales, Journal of the Acoustical Society of America
• Technical Manual on the Impact of Noise on Humans, U.S. Federal Labor Agency
• App for determining sound level, National Institute for Occupational Safety and Health, USA
• The book "Sound: Listening, Hearing, Observing" by Michel Chion
• The book "On Music. The Science of Human Obsession with Sound", by Daniel Levitin
• https://personal.ems.psu.edu/~bannon/moledyn.html
• https://rbr-global.com/speed-of-sound-in-water/