Patent ID: 11907288
Assignee: GRACENOTE, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. A method comprising:
executing, using one or more processors, a constant Q transform on query time slices of query audio;
binarizing, using the one or more processors, the constant Q transformed query time slices;
executing, using the one or more processors, a two-dimensional Fourier transform on query time windows within the binarized constant Q transformed query time slices to generate two-dimensional Fourier transforms of the query time windows;
sequentially ordering, using the one or more processors, the two-dimensional Fourier transforms in a query data structure; and
identifying, using the one or more processors, the query audio as a cover rendition of reference audio based on a comparison between the query data structure and a reference data structure associated with the reference audio.