| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound source parameter estimation method with small calculation amount. SOLUTION: The sound source parameter estimation method includes a sound source parameter estimation process which estimates a sound source parameter for determining a probability density function for each sound source signal, which is stored in a sound source model storage unit, on the basis of an observation model which is expressed by a product of a partial function regarding a sound source signal of an occupied sound source, and the partial function regarding the sound source signal of each sound source other than the former sound source signal, by inputting an observation signal in which the sound source signals generated in a plurality of sound sources are converted to signals of a frequency domain. COPYRIGHT: (C)2011,JPO&INPIT |
