"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 ..."
"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 ..."
"This is the point where the idea of bandwidth extension comes into mind quite
intuitively. Bandwidth extension in this context means the estimation of the not
transmitted frequency components out of the transmitted signal by exploiting the
transinformation included in speech signals and therewith increasing the speech
quality (see Fig.1.1c). This approach yields the advantage that nothing has to be
changed within the network – it i ..."