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This book presents an overview of speaker recognition technologies with an emphasis on dealing with robustness issues. Firstly, the book gives an overview of speaker recognition, such as the basic system framework, categories under different criteria, performance evaluation and its development history. Secondly, with regard to robustness issues, the book presents three categories, including environment-related issues, speaker-related issues and application-oriented issues. For each category, the book describes the current hot topics, existing technologies, and potential research focuses in the future. The book is a useful reference book and self-learning guide for early researchers working in the field of robust speech recognition.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Speaker Recognition: Introduction

Abstract
In the ancient war times, officers and soldiers could recognize one friend or foe through the predetermined password(s). In real life, we human are able to get in and out of a house using keys or e-cards. While surfing the Internet, the user logins in websites or mail servers with his/her account and password.
Thomas Fang Zheng, Lantian Li

Chapter 2. Environment-Related Robustness Issues

Abstract
In practical applications, many environment-related factors may influence the performance of speaker recognition. There is often no prior knowledge of these factors in advance, which makes the environment-related robustness issue more difficulty. In this chapter, three environment-related factors, background noise, cross channel and multiple-speaker, are summarized and their corresponding robustness issues are discussed.
Thomas Fang Zheng, Lantian Li

Chapter 3. Speaker-Related Robustness Issues

Abstract
Speaker dependent factors, such as gender, physical condition (cold or laryngitis), speaking style (emotion state, speech rate, etc.), cross-language, accent and session variations, are major concerns in speech signal processing. How they correlate with each other and what the key factors are in speech realization are real considerations in research [1]. The current mainstream research can be divided into five directions which will be described in the following subsections.
Thomas Fang Zheng, Lantian Li

Chapter 4. Application-Oriented Robustness Issues

Abstract
With the development of speaker recognition technologies, they have been used in wide application areas. The main applications of speaker recognition technologies include the followings.
Thomas Fang Zheng, Lantian Li

Chapter 5. Conclusions and Future Work

Abstract
This book presents an overview of speaker recognition technology with an emphasis on how to deal with the robustness issues. Firstly, we give an introduction of speaker recognition, including its basic concept, system framework, development history, categories and performance evaluations. And then we summarize the speaker recognition robustness issues from three categories, which are environment-related, speaker-related, and application-oriented. For each category, we review the current hot topics, existing technologies, and foresee potential research focuses in the future.
Thomas Fang Zheng, Lantian Li
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