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Abstract

An ambient sound retrieving device includes a sound input unit receiving a sound signal, a sound recognition unit performing a speech recognition process on the sound signal and generating an onomatopoeic word, a sound data storage unit storing an ambient sound and an onomatopoeic word corresponding to the ambient sound, a correlation information storage unit storing correlation information in which a first onomatopoeic word, a second onomatopoeic word, and a frequency of selecting the second onomatopoeic word are correlated with each other, a conversion unit converting the first onomatopoeic word into the second onomatopoeic word corresponding to the first onomatopoeic word using the correlation information, and a retrieval and extraction unit extracting the ambient sound corresponding to the second onomatopoeic word from the sound data storage unit and ranking and presenting a plurality of candidates of the extracted ambient sound.

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