scieee Science in your language
[en] (orig)

On the use of the derivative of the pole trajectories of the LPC analysis parameter sequence as an alternative to delta parameters

Freitag, Fèlix,Monte Moreno, Enrique,Hernando Pericás, Francisco Javier · 1995

Abstract

In this paper a new approach for modelling time variations in the speech spectra is presented. We propose to approximate the trajectories of the frequency and amplitude of the poles of the LPC spectra with exponential functions. The obtained time constants of the exponential functions are incorporated in the observation vector and used for recognition in an HMM based recognition system. The performance of the new parameters is tested using a database of connected digits. The recognition rates obtained with the new parameters are compared to results obtained with delta parameters.

Read accessible full text

On the use of the derivative of the pole trajectories of the LPC analysis parameter sequence as an alternative to delta parameters

Author: Freitag, Fèlix,Monte Moreno, Enrique,Hernando Pericás, Francisco Javier
Publisher: ESCA - J.M. PARDO, E. ENRIQUEZ, J. ORTEGA, J. FERREIROS GTM-UPM
Year: 1995
Source: https://upcommons.upc.edu/bitstream/2117/102598/1/e95_1373.pdf
4 h Eu opean Con e ence on
Speech Communica ion and Technology
EUROSPEECH '95
Mad id, Spain, Sep embe 18Ć21, 1995
ISCA A chi e
h p://www.iscaĆspeech.o g/a chi e
EUROSPEECH '95, Mad id, Spain, Sep embe 1995 1373
EUROSPEECH '95, Mad id, Spain, Sep embe 1995 1374
EUROSPEECH '95, Mad id, Spain, Sep embe 1995 1375