Name
Title | ||
|---|---|---|
Spatially pre-processed speech distortion weighted multi-channel Wiener filtering for noise reduction |
Abstract | ||
|---|---|---|
In this paper, we establish a generalized noise reduction scheme, called the spatially pre-processed speech distortion weighted multi-channel Wiener filter (SP-SDW-MWF), that encompasses the generalized sidelobe canceller (GSC) and a recently developed multichannel Wiener filtering technique (MWF) as extreme cases. In addition, the scheme allows for in-between solutions such as the speech distortion regularized GSC (SDR-GSC). The SDR-GSC adds robustness against signal model errors to the GSC by taking speech distortion explicitly into account in the design criterion of the adaptive stage. Compared to the widely studied GSC with quadratic inequality constraint (QIC-GSC), the SDR-GSC achieves better noise reduction for small model errors, while guaranteeing robustness against large model errors. In addition, the extra filtering of the speech reference signal in the SP-SDW-MWF further improves the performance. In the absence of model errors and for infinite filter lengths, the SP-SDW-MWF corresponds to a cascade of an SDR-GSC with a speech distortion weighted single-channel Wiener filter. In contrast to the SDR-GSC and the QIC-GSC, its performance does not degrade due to microphone mismatch. |
Year | DOI | Venue |
|---|---|---|
2004 | 10.1016/j.sigpro.2004.07.028 | Signal Processing |
Keywords | Field | DocType |
43.60.gk,multi-channel wiener filter,speech distortion,sp-sdw-mwf corresponds,infinite filter length,multi-channel wiener,model error,speech enhancement,43.72.ew,noise reduction,signal model error,43.72.kb,robust adaptive beamforming,large model error,generalized sidelobe canceller,small model error,multi-microphone noise reduction,generalized sid elobe canceller,speech distortion weighted single-channel,spatially pre-processed speech distortion,speech reference signal,adaptive beamforming,wiener filter | Noise reduction,Wiener filter,Speech enhancement,Speech processing,Control theory,Filter (signal processing),Quadratic equation,Robustness (computer science),Microphone,Mathematics | Journal |
Volume | Issue | ISSN |
84 | 12 | Signal Processing |
Citations | PageRank | References |
74 | 4.99 | 16 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| A. Spriet | 1 | 105 | 8.11 |
| Marc Moonen | 2 | 377 | 46.79 |
| Jan Wouters | 3 | 387 | 27.33 |