14. Array-based speech enhancement for microphones on seat belts

Abut, Huseyin, Rajan, Vasudev Kandade, Rohde, Sebastian, Schmidt, Gerhard, Withopf, Jochen, Hansen, John H.L., Schmidt, Gerhard, Takeda, Kazuya and Ko, Hanseok (2017) 14. Array-based speech enhancement for microphones on seat belts Vehicle Systems and Driver Modelling . DOI 10.1515/9781501504129-015.

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Abstract

Microphones placed on the seat belts of an automobile (in the following called beltmics for short) are an interesting alternative compared to other sensor positions. Because of the small distance to the speaker’s mouth, usually a good signal quality (e. g., measured in terms of high signal-to-noise ratio) can be achieved. However, the signalsmay also be disturbed because beltmics can easily be touched by, e. g., clothes and they might be in the airstream of automotive ventilation systems. In addition, applying array processing techniques is difficult because the geometry is flexible and may change over time. This chapter presents signal enhancement algorithms designed for beltmics including echo cancellation, estimation of instationary noise, and microphone combining techniques. Results based on a real-time implementation are shown finally that demonstrate the performance of this new microphone type.

Document Type: Article
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
DOI etc.: 10.1515/9781501504129-015
Date Deposited: 20 Dec 2017 10:25
Last Modified: 05 Apr 2018 13:00
URI: http://eprints.uni-kiel.de/id/eprint/40986

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