Speech Enhancement Method under Low SNR

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Abstract:

In this document, the pitch period is detected according to the sensitivity to weak sinusoidal signal and strong immunity ability to noise of Duffing oscillator, at the background of strong noise. And then enhancing pitch obtained by harmonic method. The test results show that the enhancing effect of this method is obvious under low SNR condition, and speech distortion is small.

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Periodical:

Advanced Materials Research (Volumes 457-458)

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1490-1493

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Online since:

January 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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