PURPOSE: A variable weight value base sound source search system according to an audio input data characteristic is provided to provide data which has highest similarity by matching and comparing between characteristic information of input audio data and characteristic information of pre-constructed database. CONSTITUTION: An audio signal analyzer(120) extracts at least two or more characteristic information from an audio data. According to searching condition, a weight based matching searching unit(150) determines search engine weight by search engine. At least two or more search engines searches searched stored similar sound sources of a database(170). The weight based matching searching unit generates integration search result data by integration of search result value based on the search engine weight.
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