|Marine mammal sounds|
|52 Hz sound - blue whale call?|
Description: 52 Hz "whale-like" signals were first reported by Watkins et al.(2000). On average these tones had a center frequency of 51.75 Hz and lasted 5-7 sec. These tones are usually produced in groups of 2-6 and were recorded in the NE Pacific.
Click on spectrogram for full-sized image.
241K wav file(The recorded signal has been sped up 10 times)