Fast pitch modelling for CS-ACELP coder using Fermat Number Transforms

Abstract : This paper presents a double improvements to reduce the speech coding complexity of the pitch prediction in a code-excited linear prediction (CELP) coder. First, the pitch analysis structure is modified. A new fast pitch modelling by linear-filtering (PMF) procedure will determine the adaptive and stochastic codebook contributions of the excitation signal. Afterwards, an efficient implementation of the PMF-CELP coding is proposed by using number theoretic transforms which can significantly reduce the algorithm computation complexity.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-01508725
Contributor : Stéphane Azou <>
Submitted on : Friday, April 14, 2017 - 3:34:03 PM
Last modification on : Thursday, January 11, 2018 - 6:16:32 AM

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Guillaume Madre, El Houssaïn Baghious, S Azou, Gilles Burel. Fast pitch modelling for CS-ACELP coder using Fermat Number Transforms. Burel, “Fast pitch modelling for CS-ACELP coder using Fermat Number Transforms”, IEEE International Symposium on Signal Processing and Information Technology (ISSPIT), Dec 2003, Darmstadt, Germany. ⟨10.1109/ISSPIT.2003.1341233⟩. ⟨hal-01508725⟩

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