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Analysis and synthesis of speech using least Pth norm filter design
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Analysis and synthesis of speech using least Pth norm filter design

Author: M Y Gokhale; Daljeet Kaur Khanduja
Publisher: Springer
Edition/Format: Article Article : English
Publication:International Journal of Speech Technology, 11, no. 1 (2008): 51-61
Database:ArticleFirst
Other Databases: British Library SerialsElsevier
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Document Type: Article
All Authors / Contributors: M Y Gokhale; Daljeet Kaur Khanduja
ISSN:1381-2416
Language Note: English
Unique Identifier: 439909251
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schema:description"In this paper we analyze the combination of speech and FIR filter design aspect to achieve good results in speech quality. A new approach in the time domain based on the least Pth norm is presented to extract maximum information that represents speech. The aim of this paper is to improve the perceived quality of speech through the introduction of least Pth norm algorithm that attenuates speech contaminated with noise. This approach relates to a filter bank structure and a method for filtering and separating an information signal into different bands, particularly for filtering and separation of speech signals. Then the desired signal is reconstructed from the independent components representing every band. This approach differs from the traditional approaches since no priori knowledge of the noise statistics is required, instead the noise signals are only assumed to have finite energy. Since the estimation criterion for the filter design is to minimize the worst possible amplification of the estimation error signal in terms of modeling errors and additive noise, this approach is highly robust and appropriate in practical speech analysis and synthesis. This paper presents a least Pth approach to the optimal design of FIR digital filter banks in the minimax sense for speech analysis and synthesis. The signal to noise ratio (SNR) of around 50-60 dB is achieved with various speech samples."
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