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Licensed Unlicensed Requires Authentication Published by De Gruyter 2017

10. Speaker activity detection for distributed microphone systems in cars

From the book Vehicle Systems and Driver Modelling

  • Timo Matheja , Markus Buck and Tim Fingscheidt

Abstract

In this chapter a new framework for energy-based acoustic speaker activity detection for distributed microphones in automotive environments is presented. The method relies on the evaluation of signal power ratios between the available multiple speaker-dedicated microphone signals. To obtain a robust full-band aswell as a robust frequency-selective speaker activity detection, the overall framework comprises three main parts. It is shown that the proposed detection mechanism yields an improvement in error rates compared to applying a basic speaker activity detection only.

© 2017 Walter de Gruyter GmbH, Berlin/Munich/Boston
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