Method and system for separating musical sound source...

Details Method and system for separating musical sound source... Method and system for separating musical sound source...

2010-03-29

2011-12-20

Donels, Jeffrey (Department: 2832)

Music

Instruments

Electrical musical tone generation

C084S635000, C702S196000

Reexamination Certificate

active

08080724

ABSTRACT:
Provided are an apparatus and method of separating, from a mixed signal, a sound source generated using a rhythm musical instrument based on characteristics of the rhythm musical instrument repeated in an aspect of time. The apparatus may include a separation unit to separate a plurality of mixed signals into a plurality of segments, a Nonnegative Matrix Partial Co-Factorization (NMPCF) analysis unit to perform an NMPCF analysis on the plurality of segments, and to obtain a plurality of entity matrices based on the analysis result, a target instrument signal separating unit to separate, from the mixed signals, a target instrument signal, by calculating an inner product between the plurality of entity matrices, and a signal association unit to associate the target instrument signals separated from each of the plurality of segments.

REFERENCES:
patent: 7415392 (2008-08-01), Smaragdis
patent: 7912232 (2011-03-01), Master
patent: 2005/0222840 (2005-10-01), Smaragdis
patent: 2009/0132245 (2009-05-01), Wilson et al.
patent: 2010/0138010 (2010-06-01), Aziz Sbai et al.
patent: 2011/0054848 (2011-03-01), Kim et al.

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