Title :
Joint estimation of the voiced component and spectrum of a speech signal
Author :
Holmes, W. Harvey ; Malik, Najam
Author_Institution :
Sch. of Electr. Eng., New South Wales Univ., Kensington, NSW, Australia
Abstract :
We discuss a method for extracting simultaneously both the formant information and the voiced components of a speech signal. The formant information is assumed to reside in the filter which models the vocal tract, and the voiced components are assumed to be the periodic components of the vocal tract excitation signal. These two distinct pieces of information can be used in many areas of speech processing, including low bit rate speech coding, speech recognition, and speech enhancement
Keywords :
feature extraction; filtering theory; iterative methods; least squares approximations; parameter estimation; signal representation; signal sampling; spectral analysis; speech coding; speech enhancement; speech recognition; all pole filter; excitation filter model; formant information extraction; iterative formulas; joint estimation; least square error estimation; low bit rate speech coding; periodic components; periodic sampled signal representation; speech enhancement; speech processing; speech recognition; speech signal spectrum; vocal tract excitation signal; vocal tract model; voiced components extraction; Australia; Data mining; Equations; Finite impulse response filter; Fourier series; Frequency; Information filtering; Information filters; Sampling methods; Speech;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.776479
