Optimization of Zelinski Post-filtering Calculation

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9811)

Abstract

This paper describes a new optimized method for calculating Zelinski post-filter transfer function for a microphone array. Optimized algorithm requires less memory and fewer arithmetical multiplications. We demonstrate that for the known algorithm computational complexity increases quadratically as a function of the number of microphones. In contrast, the computational complexity of the proposed algorithm increases linearly. This provides a considerable acceleration in the calculation of the post-filter transfer function.

Keywords

Zelinski Post-filtering Microphone array 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.ITMO UniversitySt. PetersburgRussia
  2. 2.Alango Technologies Ltd.St. PetersburgRussia

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