Title :
Variable rate speech coding with online segmentation and fast algebraic codes
Author :
Di Francesco, R. ; Lamblin, C. ; Leguyader, A. ; Massaloux, D.
Author_Institution :
France Telecom, Lannion, France
Abstract :
In several speech coding applications the constraint of fixed bit rate and frame size is not imposed. For such a situation, a speech coding system performing speech segmentation and segment coding, both with reasonable complexity, is proposed. Speech is segmented according to its statistical properties. Each class of segment is encoded by a specific algorithm using algebraic excitation codebooks. An average bit rate between 5 and 6 kb/s yields a small degradation over a 9.6-kb/s fixed rate coder
Keywords :
decoding; encoding; speech analysis and processing; 5 to 6 kbit/s; 9.6 kbit/s; algebraic excitation codebooks; fast algebraic codes; online segmentation; segment coding; speech coding; speech segmentation; statistical properties; variable rate coding; Bit rate; Degradation; Integral equations; Performance evaluation; Propulsion; Robustness; Speech coding; Speech synthesis; Telecommunications; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.115581
