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Generally, noise suppression methods for a stationary wideband noise and an impulsive noise are different. Our purpose is to develop a noise suppressor which can reduce both of stationary wideband and inpulsive noises. |  |
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We focus on that they have a similar property in the zero phase domain.
It is easy to replace the noise signal with a speech signal in the zero phase domain. The proposed method reduces a stationary or an inpulsive noises by the same procedure. |  |
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The proposed method does not require pre-information of noises.
The proposed method achieved to reduce a train noise or a calp noise by the same procedures. Future works involves an improvement of speech quality. |   Spectrograms of noise reduction results |