Content-based audio comparisons
US7698008B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2005 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Sep 12, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A content-based comparison of a plurality of digital audio signals can be performed by generating, for a portion of a corresponding channel, a first set of spectral characteristics associated with a first audio signal and a second set of spectral characteristics associated with a second audio signal; comparing the first set of spectral characteristics with the second set of spectral characteristics to identify a degree of difference; and determining, for the portion of the corresponding channel, whether the first audio signal is substantially identical to the second audio signal based on the identified degree of difference. Further, one or more match criteria can be received from a user and utilized to determine, for the portion of the corresponding channel, that the first audio signal is substantially identical to the second audio signal if the identified degree of difference is within the received match criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.