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. 2015 Oct 13;9:347. doi: 10.3389/fnins.2015.00347

Figure 9.

Figure 9

Audio, binned spikegram, and auditory spectrogram plots for an example of a misclassified digit (male AW, digit OB). This digit is misclassified as digit “5” for both software and hardware spikes. The mapped auditory spectrograms for both cochlea model spikes do not resemble well the auditory spectrograms of “O” and is confused with the digit “5.” The binned spikegrams and auditory spectrograms are normalized.