| 摘要 |
A video-sound signal processing system is provided with a video decoder and sound decoder. The video decoder outputs a decoded image signal and decoding information. The sound decoder outputs decoded sound signal. Scene change between preceding and current video scenes is detected in a video scene change detection unit, on the basis of the decoding information. A characteristic of the current video scene is judged based on the decoded image signal and output from the video scene change detection unit. Sound field control information is generated to control sound field suiting to the current video scene, according to the characteristic of the current video scene judged, in a sound field control information generation unit. A sound field adjustment unit adjusts sound field of a sound based on the decoded sound signal which is outputted from the sound decoder, using the sound field control information.
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