Abstrakt

Research and realization of new methods for music retrieval

Yulei Huo

For unique feature of music, plus gradually increasing requirements on music retrieval of people, especially under the condition that network music is developing gradually, identification and classification on music have also become ambiguous, while certain difficulty has also been put to copyright protection of songs. In order to guarantee to carry out better retrieval on music, and to achieve higher accuracy of music retrieval, it is required to carry out sufficient recognition on unique features of music, after carrying out sufficient understanding on music retrieval system and retrieval type, based on the original mainstream retrieval system infrastructure, to carry out improvement in the process of flow handling of audio signals, and to develop related new retrieval methods, including extraction of pitch sequence, handling methods for “small pavilion” pitch etc., so as to realize standardized operation of pitch sequence. Meanwhile, another method carrying out marking and ambiguous matching on melody contour is also designed, to define a measuring system related to music retrieval method, so as to complete research and development on music retrieval prototype system. It is obtained via experimental research that, sound matching, better calculating and retrieving methods could be obtained in the new handling flow for retrieval accuracy, so as to improve music retrieval methods in a traditional way.