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| HAL : hal-00730614, version 1 |
| DOI : 10.1121/1.4754663 |
| Fiche détaillée |  Récupérer au format |
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| Journal of the Acoustical Society of America 132, 5 (2012) 3098-3108 |
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| Sample-based engine noise synthesis using an enhanced pitch-synchronous overlap-and-add method |
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| Jan Jagla 1, 2Julien Maillard 1 |
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| (06/12/2012) |
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| An algorithm for the real time synthesis of internal combustion engine noise is presented. Through the analysis of a recorded engine noise signal of continuously varying engine speed, a dataset of sound samples is extracted allowing the real time synthesis of the noise induced by arbitrary evolutions of engine speed. The sound samples are extracted from a recording spanning the entire engine speed range. Each sample is delimitated such as to contain the sound emitted during one cycle of the engine plus the necessary overlap to ensure smooth transitions during the synthesis. The proposed approach, an extension of the PSOLA method introduced for speech processing, takes advantage of the speci c periodicity of engine noise signals to locate the extraction instants of the sound samples. During the synthesis stage, the sound samples corresponding to the target engine speed evolution are concatenated with an overlap and add algorithm. It is shown that this method produces high quality audio restitution with a low computational load. It is therefore well suited for real time applications. |
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| 1 : | Acoustic and Lighting Department |
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CSTB |
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| 2 : | Grenoble Images, Signal, Parole et Automatique (GIPSA) |
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CNRS : UMR5528 – Institut National Polytechnique de Grenoble (INPG) |
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| 3 : | 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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| SAIGA |
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| Domaine | : | Informatique/Traitement du signal et de l'image Sciences de l'ingénieur/Traitement du signal et de l'image |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00730614, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00730614 | |
| oai:hal.archives-ouvertes.fr:hal-00730614 | |
| Contributeur : Nadine Martin | |
| Soumis le : Lundi 10 Septembre 2012, 16:33:28 | |
| Dernière modification le : Lundi 28 Janvier 2013, 10:14:00 | |
