9781461415046: Advances in Non-Linear Modeling for Speech Processing
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ISBN 10: 1461415047 ISBN 13: 9781461415046
Casa editrice: Springer, 2012

Sinossi

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.

Le informazioni nella sezione "Riassunto" possono far riferimento a edizioni diverse di questo titolo.

Contenuti

From the Contents: Speech production mechanism.- Linear speech production model.- Nonlinearity in speech production.- Nonlinear dynamic system model.- Speech perception mechanism.- Summary.- Autoregressive models.- Linear autoregressive model.- Nonlinear autoregressive model.- Nonlinear measurement and modeling using Teager energy operator.- Teager energy operator (TEO).- Vocal tract aeroacoustic flow.- Energy measurement.- Energy separation.- Noise suppression using TEO.

Product Description

Rare Book

Le informazioni nella sezione "Su questo libro" possono far riferimento a edizioni diverse di questo titolo.

Editore
Springer
Data di pubblicazione
2012
Lingua
Inglese
ISBN 10 
1461415047
ISBN 13 
9781461415046
Rilegatura
Copertina flessibile
Numero di pagine
116
Contatto del produttore
non disponibile
Persona responsabile
CMN Printpool Inh. Mathis Neumann
https://www.also.com/ec/cms5/en_6000/6000/index.jsp

Friedrich-Karl-Str. 9
Hamburg
Germania

Altre edizioni note dello stesso titolo

9781461415060: Advances in Non-Linear Modeling for Speech Processing

Edizione in evidenza

ISBN 10:  1461415063 ISBN 13:  9781461415060
Casa editrice: Springer, 2012
Brossura