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Optimized real time implementation of spectral analysis and quantization for the CEOP FS1016 speech coder
Auteur(s)
Grassi, Sara
Ansorge, Michael
Pellandini, Fausto
Date de parution
1998
In
Proceedings of the International COST 254 Workshop on Intelligent Communication Technologies and Applications, with Emphasis on Mobile Communications, COST (European Cooperation in the field of Scientific and Technical Research), 1998/254//33-38
Résumé
The optimized implementation of the CELP FS1016 spectral analysis and quantization block on a DSP56001 is presented in this paper. This implementation can be seen as a preparation for an optimal low power, small size, custom VLSI implementation. The optimization is based on careful algorithmic optimization and study of the fixed-point quantization effects. Algorithmic optimization deals with the choice and modification of the algorithms, their optimal interrelation in the whole system, and a good match between algorithms and architecture. Using algorithmic optimization, a saving of 66 % was obtained in the DSP56001 implementation of the LSP calculation functional block.
Identifiants
Type de publication
journal article
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