Title :
Interlacing properties of line spectrum pair frequencies
Author :
Hong Kook Kim ; Hwang Soo Lee
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
An interlacing property of the line spectrum pair frequency (LSF) is proved on the basis of the logarithmic spectral difference function defined by the autoregressive models of successive orders. The property that the LSFs of an order are interlaced with those of lower order, provides a tight bound on the formant frequency region.
Keywords :
autoregressive processes; frequency estimation; linear predictive coding; spectral analysis; speech coding; LPC analysis order; autoregressive models; formant frequency estimation; formant frequency region; interlacing properties; line spectrum pair frequencies; logarithmic spectral difference function; speech coding; speech signal; successive orders; tight bound; Covariance matrix; Distortion measurement; Frequency estimation; Linear predictive coding; Polynomials; Signal processing; Speech analysis; Speech coding; Speech processing; Speech synthesis;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
