MF4.1. Blue whale (Balaenoptera musculus) song
Please listen with headphones to hear these very low frequencies accurately.
Recording at actual speed:
Recording at 10-times faster than the actual speed:
Blue whale (Balaenoptera musculus) song. The upper image is an amplitude plot of the song, showing relative amplitude on the vertical axis and time on the horizontal axis. The lower image is a spectrogram plot, showing frequency values vertically and time horizontally. This recording is freely distributed with the Raven sound software documentation, Center for Conservation Bioacoustics, Cornell Lab of Ornithology, 159 Sapsucker Woods Rd, Ithaca, NY 14850 U.S.A. ravensoundsoftware.com