| 摘要 |
<p>PURPOSE:To obtain the smoothing processing of the amount of sound-source estimating characteristics corresponding to a space frame, which is suitable for case when a receiver itself has the bearings property. CONSTITUTION:A unit time frame is constituted of a plurality of space frames. In the smoothing with respect to the space frames in the unit time frame, the smoothing space region constituted of a plurality of the space frames is limited and set 41 in response to each initial value of each bearings characteristic amount of each sound source. Each estimated characteristic amount of each sound source at the space frame unit corresponding to the limited region is smoothed, and the result is outputted into a time smoothing part 5. The estimating accuracy of the estimated value at the space frame close to the direction of the sound source generally becomes good. Therefore, when the space frame in the smoothing region is limited in response to the initial value of the estimated bearings, the amount of computations becomes less, the the fluctuation becomes small.</p> |
