On the output SNR of the speech-distortion weighted multichannel Wiener filter

On the output SNR of the speech-distortion weighted multichannel Wiener filter

In this letter, we prove that the output signal-to-noise ratio (SNR) after noise reduction with the speech-distortion weighted multichannel Wiener filter is always larger than or equal to the input SNR, for any filter length, for any value of the tradeoff parameter between noise reduction and speech...

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Veröffentlicht in:IEEE signal processing letters 2005-12, Vol.12 (12), p.809-811
Hauptverfasser: Doclo, S., Moonen, M.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustic noise
Delay estimation
Finite impulse response filter
Microphones
Multichannel Wiener filter
Noise reduction
output signal-to-noise ratio (SNR)
Signal processing algorithms
Signal to noise ratio
Speech enhancement
Speech processing
Wiener filter
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Zusammenfassung:In this letter, we prove that the output signal-to-noise ratio (SNR) after noise reduction with the speech-distortion weighted multichannel Wiener filter is always larger than or equal to the input SNR, for any filter length, for any value of the tradeoff parameter between noise reduction and speech distortion, and for all possible speech and noise correlation matrices.
ISSN:1070-9908
1558-2361
DOI:10.1109/LSP.2005.859530