Abstract
Binaural hearing assistance systems have a well known ambiguity in front-back discrimination which is called as “front-back confusion” or “cone of confusion” in psychoacoustics. It is known that spectral cue of sound provides keys to solve this confusion in binaural listening condition and the peaks and notches of spectral components play main role to estimate the vertical angle in sagittal coordinate. In this paper, a binaural hearing assistance system with new front-back discrimination method is proposed. The discrimination method is implemented on an artificial neural network using interaural level and phase differences as input in selected frequency bins. The performance of the proposed system is examined for simulated conditions as well as experiments.
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