| 摘要 |
PURPOSE: A basic frequency extraction apparatus, vocal melody extraction apparatus, and method thereof are provided to enable a user to easily search a sound source by effectively extracting a vocal melody. CONSTITUTION: A frequency peak detection unit(120) detects a frequency peak in the frequency spectrum of a music signal. A basic frequency candidate determination unit(130) analyzes values corresponding to the location of a peak value. The basic frequency candidate determination unit selects the basic frequency candidate included in the input signal. A basic frequency determination unit(140) selects one or more basic frequency candidates among plural basic frequency candidates.
|
