Audio tag propagation method based on the calculated content

The invention relates to an audio label disseminating method based on content calculation, and the method comprises the following steps of: calculating a similar distance between audio data based on content analysis; according to the similar distance, calculating the probability that the nearest-neighbor mark music of each marked music has the same song style label tau as that of each mark music by use of a p@n ratio; in addition, if marked music alpha satisfies the conditions that the mark music is located within a distance L, among the maximum nearest neighbors, the occurrence rate of marked music is higher than P2 and the occurrence rate of a certain label is higher than P3, disseminating the label to the alpha; for a same P2 value, performing iteration multiple times till convergence;solving the intersection set of the two disseminated labels, and supplementing the intersection set into original data for performing the process again, and obtaining a final label disseminating result after the convergence. The audio label disseminating method based on content analysis, different label disseminating models are combined, thus the accuracy is higher under the condition without introducing other information than that of a single model.