Automatic discrimination method for playing timbre of string instrument

Abstract

The invention relates to an automatic discrimination method for the playing timbre of a string instrument. The method comprises that the type and playing mode of the string instrument are discriminated automatically; aimed at the type and playing mode of the string instrument, dynamic and static characteristics of instrumental performance are extracted; and the extracted characteristics serve as input and a random forest model serves as a classifier to carry out training and classification, and results are processed continuously. New characteristics are introduced to form a dynamic and static combined instrument timbre expression form in which the time domain is combined with the frequency domain; corresponding timbre identification algorithms are used for identification aimed at the features of different expression forms, the identification results are integrated to obtain a final identification result, and the playing timbre of the string instrument is evaluated automatically; and according to the method, the characteristics, a time sequence model, and audio time-domain and frequency-domain characteristics of the string instrument are considered comprehensively in the playing process to design the complete playing timbre learning-identification technology of the string instrument.

Description

technical field [0001] The invention belongs to the cross technical field of musicology and information science, and in particular relates to a method for automatically judging the sound quality of stringed musical instruments. Background technique [0002] With the rapid improvement of material living standards, people's demand for spiritual life is increasing day by day. Among them, the proportion of music art in people's spiritual life is also increasing, and instrumental music performance is the most important part of the expression form of music art. Players, whether they are beginners who have just learned a few months, or players with many years of performance experience, will face the problem of judging the quality of performance. Because the sound quality of the performance is one of the most important basis for judging the level of the performer. [0003] The factors affecting the sound quality of playing are mainly determined by the quality of the stringed instr...

AI Technical Summary

Problems solved by technology

This method will cause inaccurate judgments due to the aesthetic fatigue of the judges, fluctuations in reference standards, subjective aesthetic tendencies, and differences in the on-site acoustic environment.

In addition, the high labor cost is also a shortcoming of manual evaluation

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