System and method for adding pitch shift resistance to an audio fingerprint
US9679573B1 · kind B1 · utility
8Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2015 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and techniques for adding pitch shift resistance to an audio fingerprint are presented. In particular, an audio track for a media file is received. A first audio fingerprint for the audio track with a first pitch shift and an Nth audio fingerprint for the audio track with an Mth pitch shift are generated, where N is an integer greater than or equal to two and M is an integer greater than or equal to two. A combined audio fingerprint is generated from at least the first audio fingerprint and the Nth audio fingerprint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.