Text-to-Speech Synthesis: Paul Taylor: 9780521899277: Amazon.com: Books

Starts from fundamentals, and builds up. Just in case you don't have a background in signal processing and z-transforms, the author takes two semesters of electrical engineering and compresses them into chapter 10. Goes on to cover acoustics, MFCC, PSOLA, HMMs, unit selection, prosody and intonation, system architectures, etc. This is a solid graduate-level or advanced undergraduate textbook. It gives a comprehensive, in-depth overview coverage of the state of the art in TTS best practices as of 2009.