Third European Conference on Speech Communication and Technology

Berlin, Germany
September 22-25, 1993


Vocoder Design Based on HOS

Asunción Moreno, José A. R. Fonollosa, Josep Vidal

Dpt. Signal Theory and Communications, Universitat Politecnica de Catalunya, Barcelona, Spain

This paper deals with the application of Higher Order Statistics (HOS) in speech coding. A new model for speech production is implemented and the parameters of the vocal track are obtained from a linear combination of third order cumulants of the speech signal. Noisy signals have been used to test the system including colored Gaussian noise and sinusoidal interfering signals. Pitch and voicing decision are also obtained by HOS analysis of speech.

Keywords: Cumulants, Speech coding

Full Paper

Bibliographic reference.  Moreno, Asunción / Fonollosa, José A. R. / Vidal, Josep (1993): "Vocoder design based on HOS", In EUROSPEECH'93, 519-522.