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| HAL : hal-00695752, version 1 |
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| 12th Annual Conference of the International Speech Communication Association (Interspeech 2011), Florence : Italy (2011) |
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| A long-term harmonic plus noise model for speech signals |
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| Faten Ben Ali 1, 2Laurent Girin 1 |
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| (27/08/2011) |
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| The harmonic plus noise model (HNM) is widely used for spectral modeling of mixed harmonic/noise speech sounds. In this paper, we present an analysis/synthesis system based on a long-term two-band HNM. "Long-term" means that the time-trajectories of the HNM parameters are modeled using "smooth" (discrete cosine) functions depending on a small set of parameters. The goal is to capture and exploit the long- term correlation of spectral components on time segments of up to several hundreds of ms. The proposed long-term HNM enables joint compact representation of signals (thus a poten- tial for low bit-rate coding) and easy signal transformation (e.g. time stretching) directly from the long-term parameters. Exper- iments show that it can be compared favourably with the short- term version in terms of parameter rates and signal quality. Index Terms: speech analysis/synthesis, harmonic + noise model, long-term processing. |
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| 1 : | Grenoble Images Parole Signal Automatique (GIPSA-lab) |
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CNRS : UMR5216 – Université Joseph Fourier - Grenoble I – Université Pierre-Mendès-France - Grenoble II – Université Stendhal - Grenoble III – Institut Polytechnique de Grenoble - Grenoble Institute of Technology |
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| 2 : | Unité Signaux et Systèmes |
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Ecole Nationaled'Ingénieurs de Tunis |
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| 3 : | Unité Signaux et Systèmes (U2S) |
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Ecole Nationale d'Ingénieurs de Tunis |
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| MAGIC |
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| Domaine | : | Sciences de l'ingénieur/Traitement du signal et de l'image Informatique/Traitement du signal et de l'image |
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| speech analysis/synthesis – harmonic + noise model – long-term processing |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00695752, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00695752 | |
| oai:hal.archives-ouvertes.fr:hal-00695752 | |
| Contributeur : Laurent Girin | |
| Soumis le : Mercredi 9 Mai 2012, 17:20:32 | |
| Dernière modification le : Mardi 30 Avril 2013, 15:44:56 | |
