| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an "input speech processing apparatus" capable of reducing throughput and reducing costs. <P>SOLUTION: An input speech processing apparatus determines a frequency band which becomes a total power calculation target, as a multiplication point based on a result of comparing power of an input speech for each frequency band with a reference value, and performs, with regard to the multiplication point, sum-of-products operation between a square amplitude value of a filter coefficient indicating transmission characteristics from a speaker to a microphone 100 and power for each frequency band, thereby estimating total power of the input speech at the position of the microphone. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
