Two microphone nonlinear frequency domain beamformer for hearing aid noise reduction
Eric Lindemann · 2002
A two microphone beamforming algorithm for hearing aid noise reduction is described. The algorithm is based on a short time Fourier transform analysis/synthesis system with nonlinear frequency domain adaptive filtering. The algorithm has been implemented on a portable battery powered device. Subjective ratings and BKB sentence scores for a group of hearing aid wearers are reported.