Title :
A new discrete all-pole modeling for the multiband excitation coder
Author :
Torres-Guijarro, Soledad ; Casajus-Quiros, F.J.
Author_Institution :
Dept. de Inf., Univ. Complutense de Madrid, Spain
Abstract :
A new model for the spectral samples obtained in the multiband excitation speech coder (MBE) is introduced. Objective and subjective tests show that it compares favorably with the classical linear prediction (LP) model, specially for high pitched speakers. Strategies for efficiently quantizing the model parameters, suitable for low bit rate implementations of the MBE coder, are also addressed
Keywords :
linear predictive coding; poles and zeros; signal sampling; spectral analysis; vector quantisation; vocoders; LPC; MBE coder; VQ; discrete all-pole modeling; high pitched speakers; linear prediction model; low bit rate; model parameters quantization; multiband excitation speech coder; objective tests; spectral samples; subjective tests; Autocorrelation; Bit rate; Frequency estimation; Harmonic analysis; Linear predictive coding; Predictive models; Speech; Telecommunication standards; Testing; Vectors;
Conference_Titel :
Electrotechnical Conference, 1998. MELECON 98., 9th Mediterranean
Conference_Location :
Tel-Aviv
Print_ISBN :
0-7803-3879-0
DOI :
10.1109/MELCON.1998.692169
