A multi-contact probe assembly may include a housing, a plurality of probe members, a plurality of spring members, and a plurality of electrical connectors. A charge-sharing principle is utilized to read signals in the capacitive sensing member. In some embodiments, the various embodiments attempt to reduce andor compensate for the loss of low frequency sound signals. The chamber has a controllable nozzle for the ejection of a stream of the fluid toward the receiver. Color filter arrays are formed such that light entering through certain regions of the color filter array passes through multiple color filters to help prevent optical crosstalk and allow for tuning spectral responses.