| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound source search device that uses mixed sound as a search key and offers high search speed and improved search accuracy.SOLUTION: A sound source search device 100 includes: characteristic quantity extraction means 10 that extracts a chroma spectrum from mixed sound comprising a music signal and a voice signal as a characteristic quantity; binarization means 20 that binarizes the extracted characteristic quantity by defining characteristic quantity values no less than an average value as "1" and characteristic quantity values less than the average value as "0"; and search means 30 that searches for a sound source in a sound source database 50 using the characteristic quantity of the mixed sound binarized by the binarization means 20 as a search key.SELECTED DRAWING: Figure 1 |
