Print Email Facebook Twitter Jointly optimal near-end and far-end multi-microphone speech intelligibility enhancement based on mutual information Title Jointly optimal near-end and far-end multi-microphone speech intelligibility enhancement based on mutual information Author Khademi, S. (TU Delft Signal Processing Systems) Hendriks, R.C. (TU Delft Signal Processing Systems) Kleijn, W.B. (TU Delft Signal Processing Systems) Contributor Dong, Min (editor) Zheng, Thomas Fang (editor) Date 2016-05-19 Abstract The processing required for the global maximization of the intelligibility of speech acquired by multiple microphones and rendered by a single loudspeaker, is considered in this paper. The intelligibility is quantized, based on the mutual information rate between the message spoken by the talker and the message as interpreted by the listener. We prove that then, in each of a set of narrow-band channels, the processing can be decomposed into a minimum variance distortionless response (MVDR) beamforming operation that reduces the noise in the talker environment, followed by a gain operation that, given the far-end noise and beamforming operation, accounts for the noise at the listener end. Our experiments confirm that both processing steps are necessary for the effective conveyance ofa message and, importantly, that the second step must be aware of the first step. Subject speech intelligibility enhancementmutal informationsignal to noise ratioroductionmulti-microphonespeech enhancementminimum variance distortionless response (MVDR)beamformer To reference this document use: http://resolver.tudelft.nl/uuid:5bed4d9e-daf6-40b6-9482-2aa43ab9601a DOI https://doi.org/10.1109/icassp.2016.7471756 Publisher IEEE, Danvers, MA ISBN 978-1-4799-9988-0 Source 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP): Proceedings Event 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016, 2016-03-20 → 2016-03-25, Shanghai International Convention Center, Shanghai, China Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type conference paper Rights © 2016 S. Khademi, R.C. Hendriks, W.B. Kleijn Files PDF khademi_2016_icassp.pdf 191.66 KB Close viewer /islandora/object/uuid:5bed4d9e-daf6-40b6-9482-2aa43ab9601a/datastream/OBJ/view