Qualitative mapping model of humming melody extraction

Some of the humming retrieval system and the qualitative mapping are introduced briefly. Combining with the music theory, a qualitative mapping model for extracting humming melody and its algorithm are given in this paper. The key points of the algorithm are the method to choose the criterion of the note segmentation dynamically and the dynamic measure to determine the pitch of a note. Experiments show that not only a better result of choosing flexibly and reasonably the criterion of the note segmentation can be determined, but also the note pitch can be extracted accurately. Eventually, the contour of humming melody can be achieved too.