Title :
Code-book driven glottal pulse analysis
Author :
Bergström, Anders ; Hedelin, Per
Author_Institution :
Dept. of Inf. Theory, Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
A code-book approach is developed for glottal-pulse modeling of speech. The authors extend previous methods of glottal pulse analysis, suggesting a practical scheme suitable for speech coding and compression. The scheme is based on using a codebook of glottal pulse signals, thereby allowing for efficient minimization of an objective measure of distortion, consistent with ordinary CELP (code-excited linear prediction) analysis. Subjective and objective quality, as well as analysis complexity, compare favorably with established methods, such as stochastic 1024-CELP coders. Moreover, the proposed coder is robust
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; CELP; code-book approach; code-excited linear prediction; glottal pulse analysis; speech coding; speech compression; Computational complexity; Distortion measurement; Information theory; Parameter extraction; Predictive models; Robustness; Signal analysis; Speech analysis; Speech coding; Stochastic processes;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266361