METHOD AND DEVICE FOR ENCODING AUDIO SIGNAL AND METHOD AND DEVICE FOR DECODING AUDIO SIGNAL

摘要

Encoded audio signals encoded in units of a block which are asynchronous with the frame or field of video signals are decoded even in units of a frame or field of the video signals. Since a series of encoded audio blocks synchronous with the frame or field of the video signals is generated and transmitted by putting an integral number of encoded audio blocks within a period corresponding to one frame or one field of the video signals, each encoded block of transmitted data is not divided into sections at the boundary of the frame or field. The encoded audio data are so decoded that any period that contains no decoded data is not generated even when switching is performed every frame or field of the video signals.