Title :
Glottal inverse filtering (GIF) using closed phase WRLS-VFF-VT algorithm
Author :
Lee, Kyosik ; Park, Kyusik
Author_Institution :
Dept. of Inf. & Telecommun., Hansei Univ., South Korea
Abstract :
In this paper, we discuss the estimation of a glottal excitation source using the glottal inverse filtering (GIF) analysis method. The WRLS-VFF-VT algorithm, which sequentially estimates the filter coefficients, estimation error, the variable forgetting factor, the pitch period, and the instant at which the glottis closes, can be applied to GIF analysis. For the estimation of the pitch period and the glottal opening/closed instants, we can use the VFF signal. The performance of this method is compared with other methods such as the two-pass and two-channel methods
Keywords :
filtering theory; inverse problems; least squares approximations; sequential estimation; speech processing; WRLS-VFF-VT algorithm; estimation error; filter coefficients; glottal excitation source; glottal inverse filtering; glottal opening/closed instants; pitch period; sequential estimation; speech analysis; variable forgetting factor; Algorithm design and analysis; Electronic mail; Filtering algorithms; Information filtering; Information filters; Pulse shaping methods; Resonance; Shape; Speech analysis; Speech synthesis;
Conference_Titel :
TENCON 99. Proceedings of the IEEE Region 10 Conference
Conference_Location :
Cheju Island
Print_ISBN :
0-7803-5739-6
DOI :
10.1109/TENCON.1999.818497
