CURRENT PERSPECTIVES IN DIGITAL SPEECH

Current understanding and capabilities in digital speech technology are outlined. The basic properties of speech technology are outlined. The basic properties of speech production and perception and the methods that use these properties for compressing the bit rate required for encoding speech are reviewed. The discussion includes several examples of practical realizations and hardware for implementing these methods and an examination of their tradeoffs in terms of complexity, overall speech quality, and required bit rate. Potential applications where these techniques may apply are suggested.