VIDEO/AUDIO ENCODING DEVICE AND DECODING DEVICE WITH ACOUSTIC SIGNAL PREFERENTIAL BIT ALLOCATION FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a video/audio encoding device for allocating, encoding and multiplexing video signals and audio signals of a predetermined program at a predetermined bit rate, and video-audio decoding device therefor.

SOLUTION: The video/audio encoding device 1 includes: a means (102) for reading audio signals of a completed program for a certain fixed time while preceding to video signals; a means (103) for encoding the preceding read audio signals and determining a required bit rate for a predetermined time unit; a means (106) for encoding video signals corresponding to the preceding read audio signals at a remainder bit rate corresponding to the required bit rate; and a means (109) for synchronously multiplexing the encoded audio signals and video signals.

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