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(A) Circuit architecture of one ear of the Dynamic Audio Sensor (adapted from Liu et al., 2014). The input goes through a cascaded set of 64 bandpass filters. The output of each of the filters is rectified. This rectified signal then drives an integrate-and-fire neuron model. (B,C) Two sample spikes of digit “2.” Dots correspond to spike outputs from the 64 channels of one ear of the cochlea.
