Abstract: An audio/video system for encoding and decoding a video signal and a plurality of corresponding audio signals includes an encoder for receiving an input video signal, a first audio signal, and a plurality of second audio signals which correspond to the input video signal. The encoder combines the input video signal and the plurality of second audio signals to produce an encoded video signal but leaves the first audio signal substantially unchanged and then outputs the first audio signal and the encoded video signal. An audio/video signal communication device is connected to the encoder. The audio/video signal communication device accepts the encoded video signal and the first audio signal and transmits them to a decoder. The decoder separates the plurality of second audio signals from the encoded video signal leaving an unencoded video signal.
Abstract: An audio/video system for encoding and decoding a video signal and a plurality of corresponding audio signals. The system includes an encoder means for receiving an input video signal, a first audio signal, and a plurality of second audio signals which correspond to the input video signal. The encoder means combines the input video signal and the plurality of second audio signals to produce an encoded video signal but leaves the first audio signal substantially unchanged and then outputs the first audio signal and the encoded video signal. An audio/video signal communication means is connected to the encoder. The audio/video signal communication means accepts the encoded video signal and the first audio signal and transmits them to a decoder. The decoder means separates the plurality of second audio signals from the encoded video signal leaving an unencoded video signal.