• Spoken Language Processing: A Guide to Theory, Algorithm and System Development
• Discrete-Time Speech Signal Processing: Principles and Practice (Prentice Hall Signal Processing Series)
• Fundamentals of Speech Recognition (Prentice Hall Signal Processing Series)
• Statistical Methods for Speech Recognition (Language, Speech, and Communication)
• Digital Image Processing: PIKS Scientific Inside

Overall decent book
Good introduction to various speech processing techniques. Attempts were made to cover very broad areas such as speech synthesis, coding, and recognition; which obviously cannot be done in a single volume. The serious readers looking to specialize in any of the mentioned areas must find other sources for more thorough info. Also note that many materials in the book are already outdated due to rapid technological advances.

A Masterpiece in Engineering
Review written by: Rajesh Kumar Venugopal From Syracuse,Ny
This is the book to have on your shelf if you are a serious about speech processing. The authors give a through treatment to the fundamental issues involved in speech processing. This outstanding work of two leaders in DSP and Speech processing, will help you to get started with the fascinating subject of speech processing. The issues covered in the book are still relevant today as it was back in 1970's. Though a bit dated this work is a classic.

The best speech processing book out there!
Review written by: Eugene Grinberg From Cooper Union, NYC
I am currently doing research for a speech processing project, and as I went through a good number of books, I was not able to find a more complete and technical source as Digital Processing of Speech Signals. In my opinion, the book has a perfect combination of theory and practice when presenting both time-domain and frequency-domain algorithms for speech analysis and synthesis. I originally borrowed this book from a library, but now I am getting my own. It is a must-have classic!

Worth it guys
Review written by: Alok Saboo From Bombay
I am an Engineering student and doing a project in speech recognition. This book not only helped me in this project but also improved my knowledge on this subject.

It is a bit to technical, but still goes a long way to improve your knowledge on the subject.