Elsevier

Signal Processing

Volume 3, Issue 2, April 1981, Pages 181-185
Signal Processing

Short communication
A modified autocorrelation method of linear prediction for pitch-synchronous analysis of voiced speech

https://doi.org/10.1016/0165-1684(81)90082-7Get rights and content

Abstract

A modified autocorrelation method of linear prediction is proposed for pitch-synchronous analysis of voiced speech. The method needs one full period of speech data for analysis and assumes periodic extension of the data. This method guarantees the stability of the estimated all-pole filter and is shown to perform better than the covariance and autocorrelation methods of linear prediction.

Zusammenfassung

Für die grundperiodensynchrone Analyse stimmhafter Sprachsignale wird eine modifizierte Version der Autokorrelationsmethode der linearen Prädiktion vorgeschlagen. Das Verfharen benötigt eine volle Grundperiode des Sprachsignals für die Analyse; hierbei wird angenommen, daβ sich auβerhalb dieser Grundperiode das Signal periodisch forsetzt. Das Verfahren garantiert die Stabilität des ermittelten Prädiktorfilters; es wird gezeigt, daβ es bessere Ergebnisse liefert als die Kovarianzmethode der linearen Prädiktion.

Résumé

Pour l'analyse synchronisée à la fondamentale de la parole voisée, on propose une méthode d'autocorrélation modifée de la prédiction linéaire. La méthode nécessite une période complète des données pour l'analyse et est basée sur l'hypothèse d'une extention périodique des donées. Cette méthode garantie la stabilité du filtre tout-pôle éstimé et il est montré qu'elle est meilleure que les méthodes de covariance et d'autocorrélation de la prédiction linéaire.

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