[bluenose69]

If anyone is interested to learn more about the history of recordings, see the following, the first of which has some .wav files holding discussion and recordings, and the second of which is an obituary that reveals much of how such work got started.

Schevill, William E., and William A. Watkins. “Whale and Porpoise Voices: A Phonograph Record.” WHOI unnumbered reports. Woods Hole Oceanographic Institution (contribution 1320), 1962. https://hdl.handle.net/1912/7431.

“William A. Watkins.” Woods Hole Oceanographic Institution. Accessed July 7, 2018. https://www.whoi.edu/mr/obit/viewArticle.do?id=1579&pid=1579.