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Birdsong Denoising Using Wavelets

Fig 6

An example of kakapo chinging used in the experiment.

Top, middle, and last rows represent oscillogram, spectrogram, and labels indicating the parts of the recording used to calculate the SnNR respectively. (a) Initial signal and (b) the same signal after denoising and band-pass filtering.

Fig 6

doi: https://doi.org/10.1371/journal.pone.0146790.g006