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Acceleration of Zelinski Post-Filtering Calculation

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Abstract

In this paper we propose a novel fast algorithm for calculating the transfer function of the Zelinski post-filter in a microphone array. The proposed algorithm requires less memory and fewer arithmetical multiplications. We demonstrate that for the “classical” algorithm computational complexity increases quadratically as a function of the number of microphones in the array. 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 in real-time systems.

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Authors and Affiliations

  1. ITMO University, 49 Kronverksky Pr., St. Petersburg, 197101, Russia

    Sergei Aleinik

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  1. Sergei Aleinik
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Correspondence to Sergei Aleinik.

Additional information

The work was financially supported by the Government of the Russian Federation, Grant 074-U01.

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Aleinik, S. Acceleration of Zelinski Post-Filtering Calculation. J Sign Process Syst 88, 463–468 (2017). https://doi.org/10.1007/s11265-016-1191-9

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  • DOI: https://doi.org/10.1007/s11265-016-1191-9

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