| 摘要 |
An audio system, and signal and sound producing devices thereof are provided to control the sound producing device by forming at least one audio data file and at least one command file in a common file type. An audio system comprises communication channels, a signal producing device, and a sound producing device(20). The communication channels transmit an audio signal and a quasi audio signal. The signal producing device includes a storage unit, a signal producing unit, and a communication unit. The sound producing device a communication unit(24), signal-to-sound converters(26), and a command restorer(21a). The communication unit connected to the communication channels receives a signal. The signal-to-sound converter connected to the communication unit is responsive to the command to generate the sound from the signal. The command restorer connected to the communication unit and the signal-to-sound converters restores the quasi audio signal to at least one piece of command data so as to control the signal-to-sound converters with the command.
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