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. Это и многое другое вы найдете в книге Bandwidth Extension of Speech Signals (Lecture Notes in Electrical Engineering) (Bernd Iser, Wolfgang Minker, Gerhard Schmidt)