A Novel MIR System Based on Improved Melody Contour Definition

This paper proposes a method of retrieval a music information by a voice or whistling clip. The method is based on the content of the music file. Firstly, extract the pitch as a kind of musical feature form the digital clip file, and then fix and smooth the discrete data. Bring forward a novel melody contour representation method to depict the musical feature properly. At last, adopt an improved LCS algorithm to matching the feature strings stored in the database. The proposed retrieval method is experimentally evaluated. The evaluation result shows that the improved method could retrieval the object more accurate.