On improving performance of analysis by synthesis speech coders
| Autor: | S. Cucchi, M. Ronchi, M. Fratti |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Acoustics and Ultrasonics
Mean squared error Computer science Weighted mean squared error Speech recognition Speech coding Speech synthesis computer.software_genre Linear predictive coding Speech processing Computer Vision and Pattern Recognition Electrical and Electronic Engineering computer Software Coding (social sciences) |
| Zdroj: | IEEE Transactions on Speech and Audio Processing. 4:243-247 |
| ISSN: | 1063-6676 |
| DOI: | 10.1109/89.496222 |
| Popis: | An algorithm for improving the performance of analysis-by-synthesis (A-by-S) speech coders is presented. It is shown that proper modifications of the A-by-S strategies commonly used to determine the excitation parameters can be devised. In particular, a redefinition of the classical objective function based on the weighted mean squared error criterion may allow a better tracking of the speech signal transients as well as a better alignment of the synthetic pitch pulses. The implementation details of the algorithm are discussed and experimental results are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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