Bandwidth Extension of Speech Signals
Bandwidth Extension of Speech Signals describes the theory and methods for quality enhancement of clean speech signals and distorted speech signals such as those that have undergone a band limitation, for instance, in a telephone network. Problems and the respective solutions are discussed for the different approaches. The different approaches are evaluated and a real-time implementation of the most promising approach is presented. The book includes topics related to speech coding, pattern- / speech recognition, speech enhancement, statistics and digital signal processing in general.
Includes a joint, unified and comprehensive presentation of speech signal analysis techniquesProposes ready-to-use methods for the bandwidth extension of speech signals in real-world scenariosDescribes objective and subjective evaluation results for the presented approaches