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Nonlinear Speech Modeling and Applications

2005-07-12 Computers
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Release : 2005-07-12
Genre : Computers
Kind : eBook
Book Rating : 860/5 ( reviews)

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Book Synopsis Nonlinear Speech Modeling and Applications by : Gerard Chollet

Download or read book Nonlinear Speech Modeling and Applications written by Gerard Chollet. This book was released on 2005-07-12. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the revised tutorial lectures given at the International Summer School on Nonlinear Speech Processing-Algorithms and Analysis held in Vietri sul Mare, Salerno, Italy in September 2004. The 14 revised tutorial lectures by leading international researchers are organized in topical sections on dealing with nonlinearities in speech signals, acoustic-to-articulatory modeling of speech phenomena, data driven and speech processing algorithms, and algorithms and models based on speech perception mechanisms. Besides the tutorial lectures, 15 revised reviewed papers are included presenting original research results on task oriented speech applications.

Nonlinear Speech Modeling and Applications

2005-07-04 Computers
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Release : 2005-07-04
Genre : Computers
Kind : eBook
Book Rating : 413/5 ( reviews)

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Book Synopsis Nonlinear Speech Modeling and Applications by : Gerard Chollet

Download or read book Nonlinear Speech Modeling and Applications written by Gerard Chollet. This book was released on 2005-07-04. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the revised tutorial lectures given at the International Summer School on Nonlinear Speech Processing-Algorithms and Analysis held in Vietri sul Mare, Salerno, Italy in September 2004. The 14 revised tutorial lectures by leading international researchers are organized in topical sections on dealing with nonlinearities in speech signals, acoustic-to-articulatory modeling of speech phenomena, data driven and speech processing algorithms, and algorithms and models based on speech perception mechanisms. Besides the tutorial lectures, 15 revised reviewed papers are included presenting original research results on task oriented speech applications.

Advances in Non-Linear Modeling for Speech Processing

2012-02-21 Technology & Engineering
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Release : 2012-02-21
Genre : Technology & Engineering
Kind : eBook
Book Rating : 055/5 ( reviews)

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Book Synopsis Advances in Non-Linear Modeling for Speech Processing by : Raghunath S. Holambe

Download or read book Advances in Non-Linear Modeling for Speech Processing written by Raghunath S. Holambe. This book was released on 2012-02-21. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Non-Linear Modeling for Speech Processing includes advanced topics in non-linear estimation and modeling techniques along with their applications to speaker recognition. Non-linear aeroacoustic modeling approach is used to estimate the important fine-structure speech events, which are not revealed by the short time Fourier transform (STFT). This aeroacostic modeling approach provides the impetus for the high resolution Teager energy operator (TEO). This operator is characterized by a time resolution that can track rapid signal energy changes within a glottal cycle. The cepstral features like linear prediction cepstral coefficients (LPCC) and mel frequency cepstral coefficients (MFCC) are computed from the magnitude spectrum of the speech frame and the phase spectra is neglected. To overcome the problem of neglecting the phase spectra, the speech production system can be represented as an amplitude modulation-frequency modulation (AM-FM) model. To demodulate the speech signal, to estimation the amplitude envelope and instantaneous frequency components, the energy separation algorithm (ESA) and the Hilbert transform demodulation (HTD) algorithm are discussed. Different features derived using above non-linear modeling techniques are used to develop a speaker identification system. Finally, it is shown that, the fusion of speech production and speech perception mechanisms can lead to a robust feature set.

Nonlinear Modeling and Processing of Speech with Applications to Speech Coding

1995 Automatic speech recognition
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Release : 1995
Genre : Automatic speech recognition
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Nonlinear Modeling and Processing of Speech with Applications to Speech Coding by : Shan Lu

Download or read book Nonlinear Modeling and Processing of Speech with Applications to Speech Coding written by Shan Lu. This book was released on 1995. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "In recent years there has been increasing interest in nonlinear speech modeling. In our approach, a speech signal is modeled as a sum of jointly amplitude (AM) and frequency (FM) modulated cosines with slowly-varying center frequencies. The key problem is to extract the center frequency and the amplitude and frequency modulations for each formant in the model from the measured speech signals. In this study, we describe the speech signal in terms of statistical models and apply statistical nonlinear filtering techniques (Extended Kalman Filter) to estimate the amplitude and frequency. The AM and FM signals are estimated for all the formants simultaneously in an efficient and computationally tractable manner. Using Cramer-Rao bound techniques, we can compare the performance of our computationally feasible estimators relative to the performance of the computationally intractable optimal estimator. Recombination of the amplitude and frequency signals generated by our approach results in faithful reconstruction of speech in both the time and frequency domains. We consider two applications. The first application, which is formant tracking, is a direct application of our nonlinear filters since the formant frequencies are a part of our nonlinear model. The application of our entire framework to speech coding is also discussed."

Dynamic Speech Models

2006 Automatic speech recognition
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Release : 2006
Genre : Automatic speech recognition
Kind : eBook
Book Rating : 649/5 ( reviews)

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Book Synopsis Dynamic Speech Models by : Li Deng

Download or read book Dynamic Speech Models written by Li Deng. This book was released on 2006. Available in PDF, EPUB and Kindle. Book excerpt: "This book provides the scientific background, mathematical theory, computational framework, algorithmic development, and technological requirements for dynamic speech modeling. It focuses on two select applications."--BOOK JACKET.

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