AMBIENT SOUND RETRIEVING DEVICE AND AMBIENT SOUND RETRIEVING METHOD

摘要

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.

主权项

1. An ambient sound retrieving device comprising:
a sound input unit configured to receive a sound signal; a sound recognition unit configured to perform a speech recognition process on the sound signal input to the sound input unit and to generate an onomatopoeic word; a sound data storage unit configured to store an ambient sound and an onomatopoeic word corresponding to the ambient sound; a correlation information storage unit configured to store correlation information in which a first onomatopoeic word, a second onomatopoeic word, and a frequency of selecting the second onomatopoeic word when the first onomatopoeic word is recognized by the sound recognition unit are correlated with each other; a conversion unit configured to convert the first onomatopoeic word recognized by the sound recognition unit into the second onomatopoeic word corresponding to the first onomatopoeic word using the correlation information stored in the correlation information storage unit; and a retrieval and extraction unit configured to extract the ambient sound corresponding to the second onomatopoeic word converted by the conversion unit from the sound data storage unit and to rank and present a plurality of candidates of the extracted ambient sound based on frequencies of selecting the plurality of candidates of the extracted ambient sound.