The Voice in the Machine: Building Computers That Understand Speech

Overview

Stanley Kubrick's 1968 film 2001: A Space Odyssey famously featured HAL, a computer with the ability to hold lengthy conversations with his fellow space travelers. More than forty years later, we have advanced computer technology that Kubrick never imagined, but we do not have computers that talk and understand speech as HAL did. Is it a failure of our technology that we have not gotten much further than an automated voice that tells us to"say or press 1"? Or is there something fundamental in human language and ...

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Overview

Stanley Kubrick's 1968 film 2001: A Space Odyssey famously featured HAL, a computer with the ability to hold lengthy conversations with his fellow space travelers. More than forty years later, we have advanced computer technology that Kubrick never imagined, but we do not have computers that talk and understand speech as HAL did. Is it a failure of our technology that we have not gotten much further than an automated voice that tells us to"say or press 1"? Or is there something fundamental in human language and speech that we do not yet understand deeply enough to be able to replicate in a computer? In The Voice in the Machine, Roberto Pieraccini examines six decades of work in science and technology to develop computers that can interact with humans using speech and the industry that has arisen around the quest for these technologies. He shows that although the computers today that understand speech may not have HAL's capacity for conversation, they have capabilities that make them usable in many applications today and are on a fast track of improvement and innovation. Pieraccini describes the evolution of speech recognition and speech understanding processes from waveform methods to artificial intelligence approaches to statistical learning and modeling of human speech based on a rigorous mathematical model—specifically, Hidden Markov Models (HMM). He details the development of dialog systems, the ability to produce speech, and the process of bringing talking machines to the market. Finally, he asks a question that only the future can answer: will we end up with HAL-like computers or something completely unexpected?

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Editorial Reviews

From the Publisher

"This is a fascinating tour of the development of modern speech technologies and applications…A wonderful historical account of the growth of speech technology." --
C. Tappert, Choice

The MIT Press

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Product Details

  • ISBN-13: 9780262016858
  • Publisher: MIT Press
  • Publication date: 3/23/2012
  • Pages: 360
  • Sales rank: 982,700
  • Product dimensions: 7.20 (w) x 9.10 (h) x 1.10 (d)

Meet the Author

Roberto Pieraccini, Director of ICSI, the International Computer Science Institute inBerkeley, California, has been active for more than thirty years in speech research and technology.

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Table of Contents

Foreword Lawrence Rabiner ix

Acknowledgments xiii

Introduction: The Dream of Machines That Understand Speech xvii

1 Humanspeak 1

2 The Speech Pioneers 47

3 Artificial Intelligence versus Brute Force 83

4 The Power of Statistics 109

5 There Is No Data like More Data 135

6 Let's Have a Dialog 167

7 An Interlude at the Other End of the Chain 191

8 Becoming Real 207

9 The Business of Speech 235

10 The Future Is Not What It Used to Be 263

Epilogue: Siri . . . What's the Meaning of Life? 285

Notes 289

Index 319

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