Bird song, wavelet graph. This image was produced by converting the frequencies of sounds made by birds singing into a graph using a mathematical proc

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Bird song, wavelet graph. This image was produced by converting the frequencies of sounds made by birds singing 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 (circular) graph, but wavelets can also be in rectangular form. Image created by Mark Fischer from Aguasonic Acoustics, USA.

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Size: 4800px × 4800px
Photo credit: © AGUASONIC ACOUSTICS/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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