Voice Application Development for Android电子书

Voice Application Development for Android

Table of Contents

Voice Application Development for Android

Credits

Foreword

About the Authors

Acknowledgement

About the Reviewers

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Web page for the book

Errata

Piracy

Questions

1. Speech on Android Devices

Using speech on an Android device

Speech-to-text

Text-to-speech

Voice Search

Android Voice Actions

Virtual Personal Assistants

Designing and developing a speech app

Why Google speech?

What is needed to create a Virtual Personal Assistant?

Summary

2. Text-to-Speech Synthesis

Introducing text-to-speech synthesis

The technology of text-to-speech synthesis

Using pre-recorded speech instead of TTS

Using Google text-to-speech synthesis

Starting the TTS engine

Developing applications with Google TTS

TTSWithLib app – Reading user input

TTSReadFile app – Reading a file out loud

Summary

3. Speech Recognition

The technology of speech recognition

Using Google speech recognition

Developing applications with the Google speech recognition API

ASRWithIntent app

ASRWithLib app

Summary

4. Simple Voice Interactions

Voice interactions

VoiceSearch app

VoiceLaunch app

VoiceSearchConfirmation app

Summary

5. Form-filling Dialogs

Form-filling dialogs

Implementing form-filling dialogs

Threading

XMLLib

FormFillLib

VXMLParser

DialogInterpreter

MusicBrain app

Summary

6. Grammars for Dialog

Grammars for speech recognition and natural language understanding

NLU with hand-crafted grammars

Statistical NLU

NLULib

Processing XML grammars

Processing statistical grammars

The GrammarTest app

Summary

7. Multilingual and Multimodal Dialogs

Multilinguality

Multimodality

Summary

8. Dialogs with Virtual Personal Assistants

The technology of VPA

Determining the user's intention

Making an appropriate response

Pandorabots

AIML

Using oob tag to add additional functions

The VPALib library

Creating a Pandorabot

Sample VPAs – Jack, Derek, and Stacy

Alternative approaches

Summary

9. Taking it Further

Developing a more advanced Virtual Personal Assistant

Summary

A. Afterword

Index