Multimedia Interactive System of Vocal Music Teaching Based on Voice Recognition

This paper discusses the application of audio signal parameters extraction and analysis technology in multimedia vocal music teaching, and studies the vocal music teaching technology based on voice recognition. In the process of voice recognition, MFCC parameters and speech frame energy constitute a combination of feature parameters as feature parameters, and the improved DTW is taken as pattern matching algorithm of evaluation criteria. Matlab is used to simulate the algorithm used in the system to determine the reliability of its performance, and the running test of the system is realized successfully. The experimental results show that the system realizes the real-time modification and playback of acoustic wave waveform and pitch on the computer, which improves the intuitive and interactive vocal music teaching.