Speech Classification of Glottal Closure Instants in the Dypsa Algorithm
The Dynamic Programming Projected-Phase Slope Algorithm (DYPSA) detects glottal closure instants (GCI) in speech signals. We present an improvement in the algorithm in which a voiced/unvoiced/silence discrimination measure is applied in order to reduce the spurious Gels detected incorrectly for sil...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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National University of Sciences and Technology, Islamabad
2008-12-01
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| Series: | NUST Journal of Engineering Sciences |
| Online Access: | https://journals.nust.edu.pk/index.php/njes/article/view/71 |
| _version_ | 1797854186435510272 |
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| author | Hania Maqsood Patrick A. Naylor |
| author_facet | Hania Maqsood Patrick A. Naylor |
| author_sort | Hania Maqsood |
| collection | DOAJ |
| description |
The Dynamic Programming Projected-Phase Slope Algorithm (DYPSA) detects glottal closure instants (GCI) in speech signals. We present an improvement in the algorithm in which a voiced/unvoiced/silence discrimination measure is applied in order to reduce the spurious Gels detected incorrectly for silence and unvoiced speech. Speech classification is addressed by formulating a decision rule for the glottal closure instant candidates which classifies the candidates as voiced or non-voiced (the ones occurring in silence and unvoiced speech) on the basis of feature measurements extracted from the speech signal alone. The technique of Dynamic Programming is then employed in order to select an optimum set of epochs from the GCI candidates. The algorithm has been tested on the APLA WD speech database with 87.23% improvement achieved in reduction of spurious GCis.
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| first_indexed | 2024-04-09T20:01:43Z |
| format | Article |
| id | doaj.art-319460366bd14793b3d68ac420b85df3 |
| institution | Directory Open Access Journal |
| issn | 2070-9900 2411-6319 |
| language | English |
| last_indexed | 2024-04-09T20:01:43Z |
| publishDate | 2008-12-01 |
| publisher | National University of Sciences and Technology, Islamabad |
| record_format | Article |
| series | NUST Journal of Engineering Sciences |
| spelling | doaj.art-319460366bd14793b3d68ac420b85df32023-04-02T23:24:39ZengNational University of Sciences and Technology, IslamabadNUST Journal of Engineering Sciences2070-99002411-63192008-12-011110.24949/njes.v1i1.71Speech Classification of Glottal Closure Instants in the Dypsa AlgorithmHania MaqsoodPatrick A. Naylor The Dynamic Programming Projected-Phase Slope Algorithm (DYPSA) detects glottal closure instants (GCI) in speech signals. We present an improvement in the algorithm in which a voiced/unvoiced/silence discrimination measure is applied in order to reduce the spurious Gels detected incorrectly for silence and unvoiced speech. Speech classification is addressed by formulating a decision rule for the glottal closure instant candidates which classifies the candidates as voiced or non-voiced (the ones occurring in silence and unvoiced speech) on the basis of feature measurements extracted from the speech signal alone. The technique of Dynamic Programming is then employed in order to select an optimum set of epochs from the GCI candidates. The algorithm has been tested on the APLA WD speech database with 87.23% improvement achieved in reduction of spurious GCis. https://journals.nust.edu.pk/index.php/njes/article/view/71 |
| spellingShingle | Hania Maqsood Patrick A. Naylor Speech Classification of Glottal Closure Instants in the Dypsa Algorithm NUST Journal of Engineering Sciences |
| title | Speech Classification of Glottal Closure Instants in the Dypsa Algorithm |
| title_full | Speech Classification of Glottal Closure Instants in the Dypsa Algorithm |
| title_fullStr | Speech Classification of Glottal Closure Instants in the Dypsa Algorithm |
| title_full_unstemmed | Speech Classification of Glottal Closure Instants in the Dypsa Algorithm |
| title_short | Speech Classification of Glottal Closure Instants in the Dypsa Algorithm |
| title_sort | speech classification of glottal closure instants in the dypsa algorithm |
| url | https://journals.nust.edu.pk/index.php/njes/article/view/71 |
| work_keys_str_mv | AT haniamaqsood speechclassificationofglottalclosureinstantsinthedypsaalgorithm AT patrickanaylor speechclassificationofglottalclosureinstantsinthedypsaalgorithm |