| 摘要 |
PURPOSE: To transmit the audio signals and the control signal that is used for control of the sound quality of these audio signals after adding both audio and control signals into the same sending signal. CONSTITUTION: The digital audio signals which are reproduced from a digital audio equipment 10 and the control signal corresponding to the user's operation undergo the coding, the multiplex processing, etc., through a transmitter 20 and are optically turned into the sending signals. These sending signals are spatially sent to a receiver 30. The receiver 30 reproduces the received digital audio and control signals and outputs them to the speaker systems 42a and 42b. Then both systems 42a and 42b control the sound quality, the sound volume, etc., of the digital audio signals based on the control signal, etc., and outputs these audio signals. |
