Audio signal processing device, audio signal processing system, and audio signal processing method

An audio signal processing device comprising:

• multiple input reception units to which respective analog audio signals, on which watermark information indicating its own identification information is superimposed, are input from respective audio devices;
• an extraction unit that is adapted to extract the identification information from the respective analog audio signals input to the multiple input reception units;
• and
• a signal processing unit that is adapted to perform signal processing depending on the identification information extracted by the extraction unit for the analog audio signal, from which the identification information is extracted, and output the processed analog audio signal.

A display method comprising:

• an input reception step in which analog audio signals, on which watermark information indicating its own identification information is superimposed, are input from respective audio devices to multiple input reception units;
• an extraction step of extracting the identification information from each of the analog audio signals input to the multiple input reception units;
• and
• a display step of performing display depending on the identification information extracted in the extraction step in correspondence with the input reception unit to which the analog audio signal, from which the identification information is extracted, is input.

An audio signal processing method comprising:

• an input reception step in which analog audio signals, on which watermark information indicating its own identification information is superimposed, are input from respective audio devices to multiple input reception units;
• an extraction step of extracting the identification information from each of the analog audio signals input to the multiple input reception units;
• and
• a signal processing step of performing signal processing depending on the identification information extracted in the extraction step for the analog audio signal from which the identification information is extracted and outputting the processed analog audio signal.

An audio signal processing system, comprising:

• an audio signal output device;
• an audio signal processing device;
• and a server device, wherein
• the audio signal output device includes identification information storage unit for storing identification information, and identification information superimposition unit for superimposing the identification information read from the identification information storage unit on analog audio signals and outputting the resultant analog audio signals,
• the audio signal processing device includes an extraction unit for extracting the identification information from the analog audio signals output from the audio signal output device, and a first communication unit for transmitting the identification information to the server device,
• the server device includes a setting information storage unit in which setting information, that corresponds to the identification information of the audio signal processing device for setting adjustment parameters from the analog audio signals, are stored in advance, and a second communication unit for, if the identification information is received from the audio signal processing device, transmitting the setting information corresponding to the identification information to the audio signal processing device, and
• the audio signal processing device further includes a signal processing unit for, if the first communication unit receives the setting information corresponding to the identification information transmitted to the server device from the server device, setting the adjustment parameters of the analog audio signal in accordance with the setting information.