Manikin and cochlear implant patient test results with a portable adaptive beamforming processor to suppress the effects of noise.


A simple adaptive beamformer (ABF) was implemented in a real-time portable speech processor and tested with four cochlear implant patients. The ABF algorithm used signals from only two microphones--one behind each ear--to attenuate sounds not arriving from the direction directly in front of the patient, and was compared with a strategy in which the two… (More)