| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce a noise canceling effect of a device in which a noise source is separated from a noise canceling speaker even when the position of a listener changes. <P>SOLUTION: An information processor 1 equipped with a camera 104, a loudspeaker 105, and a microphone 106 includes: position specifying means 101 specifying, based on image information input from the camera 104, the position of a user; opposite phase sound generating means 102 generating, based on noise input from the microphone 106, an opposite phase sound of the noise; and phase shift correcting means 103 correcting, based on the specified position of the user, the phase of the generated opposite phase sound, and making the loudspeaker 105 output the opposite phase sound after correction. The phase shift correcting means 103 calculates the phase shift on the basis of the difference between the distance from the noise source 110 of the noise to the user and the distance from the loudspeaker 105 to the user. <P>COPYRIGHT: (C)2012,JPO&INPIT |
