Title :
Some advances in nonlinear speech modeling using modulations, fractals, and chaos
Author :
Maragos, Petros ; Dimakis, Alexander G. ; Kokkinos, Iasonas
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Greece
Abstract :
We briefly summarize our on-going work on modeling nonlinear structures in speech signals, caused by modulation and turbulence phenomena, using the theories of modulation, fractals, and chaos as well as suitable nonlinear signal analysis methods. Further, we focus on two advances: (i) AM-FM modeling of fricative sounds with random modulation signals of the 1/f-noise type; (ii) improved methods for speech analysis and prediction on reconstructed multidimensional attractors.
Keywords :
1/f noise; acoustic noise; acoustic signal processing; chaos; feature extraction; fractals; modulation; nonlinear acoustics; prediction theory; speech processing; turbulence; 1/f-noise; AM-FM modeling; acoustic signal feature extraction; chaos; fractals; fricative sounds; modulations; nonlinear signal analysis; nonlinear speech modeling; prediction; reconstructed multidimensional attractors; turbulence phenomena; Aerodynamics; Chaos; Data mining; Fractals; Multidimensional systems; Nonlinear acoustics; Predictive models; Resonance; Speech analysis; Speech synthesis;
Conference_Titel :
Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on
Print_ISBN :
0-7803-7503-3
DOI :
10.1109/ICDSP.2002.1027897
