Algorithms and Software for Predictive and Perceptual Modeling of Speech

Idioma: inglés

Editorial: Springer, Springer Mär 2011, 2011

3031003888 / 9783031003882

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This item is printed on demand - Print on Demand Titel. Neuware -From the early pulse code modulation-based coders to some of the recent multi-rate wideband speech coding standards, the area of speech coding made several significant strides with an objective to attain high quality of speech at the lowest possible bit rate. This book presents some of the recent advances in linear prediction (LP)-based speech analysis that employ perceptual models for narrow- and wide-band speech coding. The LP analysis-synthesis framework has been successful for speech coding because it fits well the source-system paradigm for speech synthesis. Limitations associated with the conventional LP have been studied extensively, and several extensions to LP-based analysis-synthesis have been proposed, e.g., the discrete all-pole modeling, the perceptual LP, the warped LP, the LP with modified filter structures, the IIR-based pure LP, all-pole modeling using the weighted-sum of LSP polynomials, the LP for low frequency emphasis, and the cascade-form LP. These extensions canbe classified as algorithms that either attempt to improve the LP spectral envelope fitting performance or embed perceptual models in the LP. The first half of the book reviews some of the recent developments in predictive modeling of speech with the help of Matlab¿ Simulation examples. Advantages of integrating perceptual models in low bit rate speech coding depend on the accuracy of these models to mimic the human performance and, more importantly, on the achievable 'coding gains' and 'computational overhead' associated with these physiological models. Methods that exploit the masking properties of the human ear in speech coding standards, even today, are largely based on concepts introduced by Schroeder and Atal in 1979. For example, a simple approach employed in speech coding standards is to use a perceptual weighting filter to shape the quantization noise according to the masking properties of the human ear. The second half of the book reviews some of the recent developments in perceptual modeling of speech (e.g., masking threshold, psychoacoustic models, auditory excitation pattern, and loudness) with the help of Matlab¿ simulations. Supplementary material including Matlab¿ programs and simulation examples presented in this book can also be accessed here. Table of Contents: Introduction / Predictive Modeling of Speech / Perceptual Modeling of SpeechSpringer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 124 pp. Englisch.…

N° de ref. del artículo 9783031003882

Título
Algorithms and Software for Predictive and Perceptual Modeling of Speech
Autor
Venkatraman Atti
Editorial
Springer, Springer Mär 2011
Año de publicación
2011
Estado
Neu
Encuadernación
Taschenbuch
Idioma
inglés
ISBN 10
3031003888
ISBN 13
9783031003882
Peso del artículo
248 gramos
Dimensiones
235x191x8 mm

buchversandmimpf2000

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Vendedor de 5 estrellas

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