Title:
AUDIO SIGNAL PROCESSING SYSTEM AND METHOD FOR SEARCHING FOR SOUND SOURCE OF BROADCAST CONTENT
Document Type and Number:
WIPO Patent Application WO/2016/024734
Kind Code:
A1
Abstract:
An audio signal processing system and method for searching for a sound source of a broadcast content is disclosed. The present invention comprises: an audio extraction unit for extracting an audio signal from a broadcast content; a voice removal unit for acquiring a subtraction audio signal in which a voice signal component as a difference between a left channel signal and a right channel signal of the audio signal has been removed; a dynamic characteristic analysis unit for acquiring an energy trajectory of the subtraction audio signal in a preset scheme, and outputting a music detection signal by detecting rising and falling variations for the energy trajectory; a fingerprint extraction unit for extracting an audio fingerprint for the audio signal and a subtraction fingerprint for the subtraction audio signal, and generating at least one of the audio fingerprint or the subtraction fingerprint as an integrated fingerprint in response to the music detection signal; and a sound source search unit for searching for a corresponding sound source by comparing an integrated fingerprint generated by a fingerprint extraction unit and a sound source database, in which integrated fingerprints for a plurality of sound sources are previously stored, with a fingerprint stored in the sound source database.
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Inventors:
KIM SUNG WOOK (KR)
Application Number:
PCT/KR2015/007664
Publication Date:
February 18, 2016
Filing Date:
July 23, 2015
Export Citation:
Assignee:
BEAGLE INC (KR)
International Classes:
H04N21/432; H04N21/439
Foreign References:
| KR20130104878A | 2013-09-25 | |||
| KR100893123B1 | 2009-04-10 | |||
| KR100733145B1 | 2007-06-27 | |||
| KR100456408B1 | 2004-11-10 |
Attorney, Agent or Firm:
MI PATENT & LAW FIRM (KR)
특허법인 명인 (KR)
특허법인 명인 (KR)
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