International Speech Communication Association. Annual Conference (16. : 2015 : Dresden) Speech beyond speech towards a better understanding of the most important biosignal ; Volume 1 Red Hook, NY : Curran Associates, Inc., 2016 (2016), Seite 75-79 723 Seiten
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 the user to localize sources, in particular, suppressed interfering sources or background noise. In this paper, we present a novel algorithm that enhances the target signal while aiming to maintain the correct spatial rendering of both the target signal as well as the background noise. We use a bimodal approach, where a signal-to-noise ratio (SNR) estimator controls a binary decision mask, switching between the output signals of a binaural minimum variance distortionless response (MVDR) beamformer and scaled reference microphone signals. We show that the proposed selective binaural beamformer (SBB) can enhance the target signal while maintaining the overall spatial rendering of the acoustic scene.
European Association for Speech, Signal and Image Processing EURASIP journal on advances in signal processing Heidelberg : Springer, 2007 (2016), 12, insgesamt 11 Seiten Online-Ressource
Institute of Electrical and Electronics Engineers IEEE ACM transactions on audio, speech, and language processing New York, NY : IEEE, 2014 24(2016), 2, Seite 215-225 Online-Ressource
2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Piscataway, NJ : IEEE, 2015 (2015), Seite 5743-5747 Online-Ressource