Title :
A new model of LPC excitation
Author :
Xu, Jun ; Zheng, Yuancheng ; Liang, Mangui ; Lin, Biqing ; Yuan, Baozhong
Author_Institution :
Inf. Sci. Res. Inst., Northern Jiao-tong Univ., Beijing, China
Abstract :
This paper presents a model of LPC excitation in terms of singular value components of the impulse response matrix of the LPC filter. This representation allows a systematic study of changes in the filter excitation on the speech output. The model is applied to Chinese speech synthesis to obtain an 8 kbps synthesis scheme which keeps the quantization noise inaudible
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; speech synthesis; transient response; Chinese speech synthesis; LPC filter; impulse response matrix; linear prediction coding; model; quantization noise; singular value components; speech output; Bit rate; Linear predictive coding; Matrix decomposition; Nonlinear filters; Quantization; Singular value decomposition; Speech analysis; Speech enhancement; Speech synthesis; Stochastic resonance;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184266
