| 摘要 |
PURPOSE: A multi-type audio system of a car is provided to output various sound sources, and to connect the sound sources with various external apparatuses to play or store the connected sound sources, so that a driver can use a portable sound apparatus in a car to the maximum. CONSTITUTION: A decoder unit(310) processes digital sound signals, and outputs analog sound signals. An encoder unit(360) converts analog or digital sound signals into individual sound signals matched with various external sound apparatuses, and outputs the converted signals. The decoder unit(310) comprises as follows. A demultiplexer(311) separates digital sound signals into individual digital sound signals. Plural decoders(312,313) convert the individual digital sound signals into analog sound signals.
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