Speech enhancement for multimicrophone binaural hearing aids aiming to preserve the spatial auditory scene

摘要: Modern binaural hearing aids utilize multimicrophone speech enhancement algorithms to enhance signals in terms of signal-to-noise ratio, but they may distort the interaural cues that allow user localize sources, particular, suppressed interfering sources or background noise. In this paper, we present a novel algorithm enhances target signal while aiming maintain correct spatial rendering both as well We use bimodal approach, where ratio (SNR) estimator controls binary decision mask, switching between output minimum variance distortionless response (MVDR) beamformer and scaled reference microphone signals. show proposed selective (SBB) can maintaining overall acoustic scene.