Method, medium, and system for music retrieval using modulation spectrum
USRE46037E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2012 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Oct 19, 2032 |
Classification
- Technology area (CPC —)General
Abstract
An audio information retrieval method, medium, and system that can rapidly retrieve audio information, even in noisy environments, by extracting a modulation spectrum that is robust against noise, converting features of the extracted modulation spectrum into hash bits, and using a hash table. The audio information retrieval method may include extracting a modulation spectrum from audio data of a compressed domain, converting the extracted modulation spectrum into fingerprint bits, arranging the fingerprint bits in a form of a hash table, converting a received query into an address by a hash function corresponding to the query, and retrieving the audio information by referring to the hash table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.