Effect of quantization on beamforming in binaural hearing aids

Authors:
Sriram Srinivasan;Ashish Pandharipande;Kees Janse
Affiliations:
Philips Research, Eindhoven, The Netherlands;Philips Research, Eindhoven, The Netherlands;Philips Research, Eindhoven, The Netherlands
Venue:
BodyNets '08 Proceedings of the ICST 3rd international conference on Body area networks
Year:
2008

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Abstract

We consider a beamforming scheme for binaural hearing aids and analyze the effects of quantization on its performance. A limited bandwidth wireless link is assumed between the binaural hearing aids for communication from one ear to the other ear, where signals are then processed using a generalized sidelobe canceller (GSC). We consider the case where observations are quantized before transmission, and study the performance of the GSC beamformer under quantization errors.