| 摘要 |
PROBLEM TO BE SOLVED: To more easily enable a determination whether or not an echo canceler works.SOLUTION: In an information processing unit, information on the power value difference between a far-end voice signal that is a voice signal which is acquired through a microphone used by a speaker and a near-end voice signal that is a voice signal which is acquired through a microphone used by a receiver and in which an echo component may be removed by an echo canceller is acquired, and it is determined whether or not the echo component has been removed in the near-end voice signal.SELECTED DRAWING: Figure 1 |
