Methods and apparatus for audio recognition
US8352259B2 · kind B2 · utility
6Cited by
40References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 20, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Jul 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Frequencies from a set of audio source files are extracted and measured across the set to determine a range of each of the frequencies. Stable frequencies of the frequencies are detected based on each range and used to create a stable frequency family. An unknown recording is mapped to the stable frequency family to form an audio fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.