Language Identification Using Excitation Source Features

Front Cover
This book discusses the contribution of excitation source information in discriminating language. The authors focus on the excitation source component of speech for enhancement of language identification (LID) performance. Language specific features are extracted using two different modes: (i) Implicit processing of linear prediction (LP) residual and (ii) Explicit parameterization of linear prediction residual. The book discusses how in implicit processing approach, excitation source features are derived from LP residual, Hilbert envelope (magnitude) of LP residual and Phase of LP residual; and in explicit parameterization approach, LP residual signal is processed in spectral domain to extract the relevant language specific features. The authors further extract source features from these modes, which are combined for enhancing the performance of LID systems. The proposed excitation source features are also investigated for LID in background noisy environments. Each chapter of this book provides the motivation for exploring the specific feature for LID task, and subsequently discuss the methods to extract those features and finally suggest appropriate models to capture the language specific knowledge from the proposed features. Finally, the book discuss about various combinations of spectral and source features, and the desired models to enhance the performance of LID systems.

What people are saying - Write a review

We haven't found any reviews in the usual places.


1 Introduction
2 Language IdentificationA Brief Review
3 Implicit Excitation Source Features for Language Identification
4 Parametric Excitation Source Features for Language Identification
5 Complementary and Robust Nature of Excitation Source Features for Language Identification
6 Summary and Conclusion
Appendix AGaussian Mixture Model
Appendix BMelFrequency Cepstral Coefficient MFCCFeatures
Appendix CEvaluation of Excitation Source Featuresin Different Noisy Conditions

Other editions - View all

Common terms and phrases