Voice keyword matching system in the audio data, voice keyword matching program of the methods and within the audio data

摘要

PPROBLEM TO BE SOLVED: To achieve collation of voice keyword in voice data with a practical search precision without requiring voice recognition processing by a highly versatile and simple configuration. PSOLUTION: The collation system includes: a voice waveform-combining part which combines a standard voice waveform pattern and a plurality of derived voice waveform patterns different from the standard voice waveform pattern in speed and/or volume, from an input search keyword text; a similarity threshold calculation part which variably sets a similarity threshold for collation by raising or reducing a reference threshold; and a voice keyword collation part which refers to a voice keyword database and successively compares the standard voice waveform pattern and the plurality of derived voice waveform patterns with a voice waveform pattern of read voice data to calculate similarities and obtains positions of voice keywords of which the calculated similarities are equal to or higher than the similarity threshold. PCOPYRIGHT: (C)2011,JPO&INPIT