- Category:
- matlab
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[Matlab]
[源码]
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- 2kb
- Update:
- 2015-05-19
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- 林宇
Description: Implement wiener filtering used in speech enhancement. First step optimum wiener filter is obtained by using the frequency spectrum function, again to input the signal with noise filtering The second step is the improvement on the basis of this, with the idea of adaptive, and in a timely manner according to the current frame updates correction system function of the filter, get a more accurate without noise speech signal. The third step is to use the adaptive LMS method, iterative calculation in time domain filter coefficient, the number of iterations enough to get the useful signal accurately.
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Wiener.m
Wiener3.m
LMS.m
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