Abstract
This paper presents new binaural enhancement and noise suppression algorithms for binaural hearing aids. To enhance interaural level difference (ILD) cues at low frequencies, which are usually small, interaural time difference (ITD) cues are estimated and transformed to ILDs. The binaural noise suppression algorithm consists of adaptive beamforming and a coherence-based suppression filter. The estimated phase and signal-to-noise ratio (SNR) at each hearing aid are used to perform the processing. The performance of the proposed methods was assessed using perceptual evaluation with hearing-impaired listeners and objective evaluation.
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