Компьютерная система обучения интонационным конструкциям русской речи
A software system is presented which is designed to train learners in producing the basic intonation patterns of Russian speech. The system is based on comparing the melodic portraits of a reference sentence and a sentence pronounced by the learner and involves active interaction of the learner with the system. While parametric representation of intonation features of the speech signal faces fundamental difficulties, the paper shows how they can be overcome. The basic algorithms of analyzing and comparing intonation features, usedintheproposedlearningsystem, arepresented. Thefeaturesoftheacoustic database composed ofreference sentences and used in the learning system are presented. The set of reference sentences represents intonation patterns of Russian speech (IP1 to IP7) and their basic varieties. The system’s interface is presented and the results of system operation are illustrated.