Artificial sound source separation method and device of thereof

An artificial sound source separation device, comprising:

• an input/output unit configured to transmit and receive data;
• a memory configured to store the data;
• a dictionary learning unit configured to perform dictionary learning;
• and
• a processor configured to:
• control the dictionary learning unit to generate a dictionary matrix by performing the dictionary learning using a K-singular value decomposition K-SVD algorithm,
• control the input/output unit to receive an overlapping sound source in which at least two sound sources are mixed,
• separate a target sound source from the overlapping sound source based on the dictionary matrix, and
• detect the target sound source,
• wherein the target sound source is separated from the overlapping sound source through non-negative matrix factorization,
• wherein the separated target sound source is represented by the dictionary matrix and a gain matrix,
• wherein, based on a summed value of gains in the gain matrix being less than a specific threshold, the detection of the target sound source is determined to fail, and
• wherein the failed target sound source is used for the dictionary learning.