Patent ID: 9466315
Filing Date: 2016-10-11
CPC Classification: G10L

Claim Text:
1. A method for calculating a similarity of audio files, comprising: constituting a pitch sequence of a first audio file and a pitch sequence of a second audio file; calculating an eigenvector of the first audio file according to the pitch sequence of the first audio file, which comprises: calculating characteristic parameters of the first audio file according to the pitch sequence of the first audio file; storing the characteristic parameters of the first audio file in the form of an array, to generate the eigenvector of the first audio file; and calculating an eigenvector of the second audio file according to the pitch sequence of the second audio file, which comprises: calculating characteristic parameters of the second audio file according to the pitch sequence of the second audio file; storing the characteristic parameters of the second audio file in the form of an array, to generate the eigenvector of the second audio file; wherein, the characteristic parameters comprise at least one of a proportion of the pitch ascending, a proportion of the pitch descending, an average rate of the pitch ascending, and an average rate of the pitch descending; and calculating a similarity between the first audio file and the second audio file according to the eigenvector of the first audio file and the eigenvector of the second audio file.