Audio-video control system

An audio-video control system, adapted to control a first device and a second device, and the audio-video control system comprising:

• a first audio sensor, adapted to receive a first audio signal in a first area when the first audio sensor is enabled;
• a controller, communicatively connected to the first audio sensor and determining whether the first audio sensor receives the first audio signal;
• an audio player, communicatively connected to the controller;
• and
• a first motion sensor, communicatively connected to the controller and adapted to detect a motion of a first object in the first area so as to generate a first motion detecting signal, and the controller enabling the first audio sensor according to the first motion detecting signal;
• and
• a processor, communicatively connected to the controller and controlling the first and second devices via a local area network,
• wherein the processor controls the audio player to play an audio notifying signal according to the first motion detecting signal and determines whether a source of the first audio signal corresponds to a first account,
• wherein the processor processes the first audio signal to obtain a control signal to selectively control the first device or the second device when the source of the first audio signal corresponds to the first account, the first device is an audio-video device, the processor of the controller further obtains an audio playing signal from the audio-video device directly as an electrical or wireless signal that is not an audio sensor received by the first audio sensor, and the processor of the controller directly subtracts the audio playing signal played by the audio-video device from the first audio signal to obtain a second audio signal,
• wherein the processor processes the second audio signal to obtain the control signal, the processor further determines whether a third audio signal corresponds to a second account when the first audio sensor simultaneously receives the first audio signal and the third audio signal, and the processor only processes the first audio signal to obtain the control signal when the third audio signal doesn't correspond to the second account, and
• wherein the audio-video control system further comprises a storage medium storing a first instruction set related to the first account and a second instruction set related to the second account, and the processor determines the priority of the first account and the second account to decide to use the first instruction set or the second instruction set to generate the control signal when the third audio signal corresponds to the second account.