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Theoretical analysis of binaural cue preservation using multi-channel Wiener filtering and interaural transfer functions
- Author(s)
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- Simon Doclo, (K.U.Leuven, Dept. of Electrical Engineering)
- Thomas J. Klasen, (K.U.Leuven, Dept. of Electrical Engineering)
- Tim Van den Bogaert, (K.U.Leuven, ExpORL)
- Jan Wouters, (K.U.Leuven, ExpORL)
- Marc Moonen, (K.U.Leuven, Dept. of Electrical Engineering)
- Topics
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- Microphone arrays and array signal processing
- Noise reduction techniques
- Active noise control, sound reproduction and hearing aids
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Abstract
In this paper a theoretical analysis of the binaural cue preservation of the multi-channel Wiener filter (MWF) is performed. We will prove that in the case of a single speech source the MWF perfectly preserves the binaural cues of the speech component, but changes the binaural cues of the noise component to the cues of the speech component. In addition, we show that by extending the MWF cost function with terms related to the interaural transfer function it is possible to preserve the binaural cues of both the speech and the noise component, without considerably reducing the noise reduction performance.
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