As many traditional de-noising methods fail in the intensive noises environment, a method based on independent component analysis(ICA) feature extraction was applied for acoustic signals. It is proved that the ICA transform can improve the sup-Gaussian property of speech and music signals.Using the ICA basis functions as filters, a de-noising technique of threshold from intensive noises was proposed. The de-nosing experiments of acoustic signals with intensive Gaussian noise were compared with the mean and ...
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