Post-filtering Techniques
| Authors: | K.U. Simmer, J. Bitzer, C. Marro |
| Abstract: | In the context of microphone arrays, the term post-filtering denotes the post-processing of the array output by a single-channel noise suppression filter. A theoretical analysis shows that Wiener post-filtering of the output of an optimum distortionless beamformer provides a minimum mean squared error solution. We examine published methods for post-filter estimation and develop a new algorithm. A simulation system is presented to compare the performance of the discussed algorithms. |
| Document type: | Chapter in Book |
| in Book: | Microphone Arrays |
| Publication: | Springer, Berlin, Heidelberg, New York, May 2001 |
| Pages: | 39-57 |
| Index: | 119 |
| Files: | BibTEX |
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