Advanced Techniques in Speech Recognition

Advanced Techniques in Speech Recognition

Jose Luis Oropeza-Rodriguez (National Polytechnic Institute, Mexico) and Sergio Suárez-Guerra (National Polytechnic Institute, Mexico)
DOI: 10.4018/978-1-59904-132-2.ch012
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During the last 30 years, people have tried to communicate in an oral form with the computers, developing for this end an important amount of automatic speech recognition algorithms. Because of this, software such as the Dragon Dictate and the IBM Via Voice are already available to interact easily with the computer in oral form. However, during the last several years ASR has not reported important advances, not only due to the advances obtained until now, but also because the scientific community working in this area does not have founded another tool so powerful as HMM, despite a great number of alternatives that have been proposed since HMM appeared. This chapter presents the main elements required to create a practical ASR using HMM. The basic principles of the continuous density hidden Markov models (CDHMM) are also given.

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Table of Contents
Tomohiko Taniguchi
Hector Perez-Meana
Chapter 1
Hector Perez-Meana, Mariko Nakano-Miyatake
The development of very efficient digital signal processors has allowed the implementation of high performance signal processing algorithms to solve... Sample PDF
Introduction to Audio and Speech Signal Processing
Chapter 2
Gordana Jovanovic Dolecek, Alfonso Fernandez-Vazquez
This chapter introduces several digital filters useful for sound generation and transformation as well as for production of audio effects. It also... Sample PDF
Digital Filters for Digital Audio Effects
Chapter 3
Paulo A.A. Esquef, Luiz W.P. Biscainho
This chapter reviews audio signal processing techniques related to sound generation via additive synthesis. Particular focus will be put on... Sample PDF
Spectral-Based Analysis and Synthesis of Audio Signals
Chapter 4
Paulo A.A. Esquef, Luiz W.P. Biscainho
This chapter addresses digital signal processing techniques for sound restoration and enhancement. The most common sound degradations found in audio... Sample PDF
DSP Techniques for Sound Enhancement of Old Recordings
Chapter 5
Aparna Gurijala, John R. Deller Jr.
The main objective of this chapter is to provide an overview of existing speech and audio watermarking technology and to demonstrate the importance... Sample PDF
Digital Watermarking Techniques for Audio and Speech Signals
Chapter 6
Ronghui Tu, Jiying Zhao
In this chapter, we will introduce digital watermarking systems and quality evaluation algorithms for audio and speech signals. Originally designed... Sample PDF
Audio and Speech Watermarking and Quality Evaluation
Chapter 7
Sergio L. Netto, Luiz W.P. Biscainho
This chapter focuses on the main aspects of adaptive signal processing. The basic concepts are introduced in a simple framework, and its main... Sample PDF
Adaptive Filters: Structures, Algorithms, and Applications
Chapter 8
Mohammad Reza Asharif, Rui Chen
In this chapter, we shall study adaptive digital filtering (ADF) and its application to acoustic echo canceling (AEC). At first, Wiener filtering... Sample PDF
Adaptive Digital Filtering and Its Algorithms for Acoustic Echo Canceling
Chapter 9
Hector Perez-Meana, Mariko Nakano-Miyatake
Some of the main problems present in active noise cancellations are the feedback distortion due to the acoustic feedback between the cancellation... Sample PDF
Active Noise Canceling: Structures and Adaption Algorithms
Chapter 10
Manjunath Ramachandra Iyer
Speaker authentication has become increasingly important. It goes with the other forms of security checks such as user login and personal... Sample PDF
Differentially Fed Artificial Neural Networks for Speech Signal Prediction
Chapter 11
Sergio Suárez-Guerra, Jose Luis Oropeza-Rodriguez
This chapter presents the state-of-the-art automatic speech recognition (ASR) technology, which is a very successful technology in the computer... Sample PDF
Introduction to Speech Recognition
Chapter 12
Jose Luis Oropeza-Rodriguez, Sergio Suárez-Guerra
During the last 30 years, people have tried to communicate in an oral form with the computers, developing for this end an important amount of... Sample PDF
Advanced Techniques in Speech Recognition
Chapter 13
Speaker Recognition  (pages 371-407)
Shung-Yung Lung
This chapter presents some of the main contributions in several topics of speaker recognition since 1978. Representative books and surveys on... Sample PDF
Speaker Recognition
Chapter 14
Ingrid Kirschning, Ronald Cole
This chapter presents the development and use of speech technologies in language therapy for children with hearing disabilities. It describes the... Sample PDF
Speech Technologies for Language Therapy
About the Authors