Title :
Low bit-rate LPC speech communications via a new multipulse speech model
Author :
Paarmann, L.D. ; Magner, C.A. ; McCarthy, B.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
A speech model with an excitation that is a multipulse sequence with additive white noise is presented. This model, when used in a 4.8-kb/s communication system, has the potential for improved synthetic speech quality. The algorithm is described and convergence for synthetic data of the assumed structure is proved. A method for significantly improved efficiency is presented, based on an algorithm given by M. Korenberg (1985). Initial experimental data that support both the authors´ and Korenberg algorithms are given.<>
Keywords :
encoding; filtering and prediction theory; speech analysis and processing; voice communication; LPC speech communications; additive white noise; algorithm; convergence; low bit rate communications; multipulse sequence; multipulse speech model; synthetic data; synthetic speech quality; Algorithm design and analysis; Convergence; Linear predictive coding; Signal processing; Signal processing algorithms; Speech analysis; Speech enhancement; Speech processing; Speech synthesis; White noise;
Conference_Titel :
Communications, 1988. ICC '88. Digital Technology - Spanning the Universe. Conference Record., IEEE International Conference on
Conference_Location :
Philadelphia, PA, USA
DOI :
10.1109/ICC.1988.13816
