| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an adaptive signal processing system and a transfer characteristic setting method for the same, capable of reducing a calculation amount required for calculation of a coefficient update equation of adaptive signal processing, while reducing an amount of a transfer characteristic to be stored. <P>SOLUTION: When the adaptive signal processing is performed in a frequency domain, the transfer characteristic from each speaker to each microphone is calculated for each frequency component, and a transfer gain is calculated by each transfer characteristic in two or more adding terms of the coefficient update equation, and compared for each frequency. When a gain difference is a preset value or less, the adding term with a smaller transfer gain is considered as 0, and the transfer characteristic of the adding term with a larger gain is set in an adaptive control section. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
