![](http://www.alamy.com/thumbs/6/20D4A5B0-2D8D-4CBC-8703-79CB25C218C8/2ACM6W6.jpg)
Lark sparrow (Chondestes grammacus) sound, wavelet graph. This image was produced by converting the sound frequencies of a lark sparrow into a graph u
Lark sparrow (Chondestes grammacus) sound, wavelet graph. This image was produced by converting the sound frequencies of a lark sparrow 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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