AER EAR: A Matched Silicon Cochlea Pair with Address Event Representation Interface

We present an analog integrated circuit containing a matched pair of silicon cochleae and an address event interface. Each section of the cochlea, modeled by a second-order low-pass filter, is followed by a simplified inner hair cell circuit and a spiking neuron circuit. When the neuron spikes, an address event is generated on the asynchronous data bus. Measurements with pure tones played from different positions are presented.