Method and apparatus for transceiving an audio data stream through a digital interface

摘要

The present invention relates to method and apparatus for transceiving audio data reproduced from a recording medium such as a digital versatile disk (DVD) through a digital interface such as IEEE 1394. The transmitting method according to the present invention separates audio data stream from data reproduced from a recording medium, inserts the separated audio data stream into the private data area of MPEG-formatted data stream, and transmits the MPEG-formatted data stream containing audio data stream in the private data area through a digital communication line. And the receiving method according to the present invention checks whether or not a received MPEG-formatted data stream through a digital interface includes the private data area, extracts audio data inserted in the private data area, and decodes the extracted audio data. The present invention does not need a conventional re-encoding after decoding, therefore prevents possible loss of audio data such as LPCM audio data caused from re-encoding operation as well as reduces device cost.