Patent ID: 7099483

Claim:
A sound control system comprising: a plurality of electronic devices connected to a communication network, each of the electronic devices being capable of independently producing sound from connected speakers; and a sound control device identifying the electronic devices, the sound control device transmitting control signals for controlling electronic devices and the sound control device transmitting the audio signals to the speakers to the electronic devices; wherein each electronic device comprises receiving means for receiving the control signals and the audio signals via the communication network and selecting in for switching from other external signals to the audio signals in response to the control signals in order to drive the speakers by only the audio signals output to the speakers, and wherein the communication network includes a power line communication network, and wherein the sound control device comprises a sound collector, test signal transmitting means for transmitting test signals to the electronic devices via the communication network, and correction means for receiving test sounds produced from the sneakers with sound collector in response to the test signals, for analyzing the received sound signal, and for adjusting the output balance of the audio signals to the electronic devices.