# echogram

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Echogram Visualisation and Analysis

Easily import multi-frequency acoustic data stored in 'HAC' files (see <https://doi.org/10.17895/ices.pub.5482> for more information on the format), and produce echogram visualisations with predefined or customized color palettes. It is also possible to merge consecutive echograms; mask or delete unwanted echogram areas; model and subtract background noise; and more important, develop, test and interpret different combinations of frequencies in order to perform acoustic filtering of the echogram's data.


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