On the Speech Distortion Weighted Multichannel Wiener Filter for diffuse Noise

Conference: Sprachkommunikation - Beiträge zur 10. ITG-Fachtagung
09/26/2012 - 09/28/2012 at Braunschweig, Deutschland

Proceedings: Sprachkommunikation

Pages: 4Language: englishTyp: PDF

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Stenzel, Sebastian; Freudenberger, Jürgen (Institute for System Dynamics, HTWG Konstanz, Brauneggerstrasse 55, 78462 Konstanz, Germany)

In this paper the multichannelWiener filter is analyzed under the constraint of a diffuse noise field. An equivalent filter function is derived that partly omits the computationally demanding and error-prone matrix inversion. This yields a reduction of the computational complexity of the algorithm. By a theoretical analysis and by simulation results the equivalence of the two filter functions is shown. The simulations were performed with real noise and speech data recorded in a car where a diffuse noise field can be assumed.