| 摘要 |
<P>PROBLEM TO BE SOLVED: To represent sound image localization of a video image in a content accurately in a device for reproducing the sound field of sound synchronized with the video image, specifically an object in the video image, by outputting to a speaker array. <P>SOLUTION: A sound image localizer comprises an input section 4, a parameter calculator 5, and a signal processor 6. The input section 4 receives a sound signal 41 which accompanies one or more objects appearing in a video image, and the positional information 42 in the video image of the object synchronized with the video image for every object. The signal processor 6 processes the input signal of that sound, and outputs a digital sound signal to each channel of a plurality of speakers. Based on the positional information of the object, a virtual sound source is set in front of a display for displaying the video image, and various parameters 51, 52 and 53 for forming the sound field of the virtual sound source are calculated for every channel. The signal processor 6 outputs the digital sound signal to each channel of each speaker based on the various parameters. <P>COPYRIGHT: (C)2008,JPO&INPIT |
