| Authors | Hassan Farsi |
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| Journal | Digital Signal Processing |
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| Page number | 97-113 |
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| Serial number | 1 |
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| Volume number | 17 |
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| IF | 1.435 |
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| Paper Type | Full Paper |
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| Published At | 2007 |
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| Journal Grade | ISI |
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| Journal Type | Typographic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | ISI،JCR،Scopus |
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| Keywords | Speech spectrum, Postfiltering, Formants Synthesis filter |
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Abstract
An adaptive time-domain postfiltering technique based on the synthesis linear prediction (LP) filter factorisation is proposed.
The factorisation is performed using the relation between the LP filter poles and formants. This technique enables more control on
the formants and valleys shape. Pole locations representing the main formant and optimum shaping constants for each formant are
searched to make narrower main formant bandwidth while maintaining other formant information and more attenuation in valley
regions
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