Bearded seal (Erignathus barbatus) sounds, wavelet graph. This image was produced by converting the sounds made by a bearded seal into a graph using a


Bearded seal (Erignathus barbatus) sounds, wavelet graph. This image was produced by converting the sounds made by a bearded seal into a graph using a mathematical process known as wavelets. Wavelets reveal structure and detail that are not always visible in standard graphs of frequency over time (known as a spectrogram). This image has been plotted as a polar coordinate (circular) graph but wavelet graphs can also be in rectangular form. Image created by Mark Fischer from Aguasonic Acoustics, USA.


Size: 4202px × 4202px
Photo credit: © AGUASONIC ACOUSTICS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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