Understanding the basics of speech coding is necessary for the design of various modern devices that rely on speech interfaces such as cell phones and PDAs. Offering a detailed yet easily accessible introduction to the field, Principles of Speech Coding provides an in-depth examination of the underlying signal processing techniques that are used in speech coding. The authors present different speech coding standards from various organizations, including the ITU. With a focus on applications such as Voice-over-IP telephony, this comprehensive text demonstrates the practical implementation of a popular standardized speech coder on a DSP processor and covers the most recent research findings.