Patent ID: 8165701

Claim:
An audio device that has a port for connection and that constitutes an audio system together with at least one external device having a port for connection with the audio device via different types of communication lines including one type of communication line and another type of communication line having a transmission distance longer than the one type of communication line, the audio device comprising: a plurality of connection setting templates that are previously prepared and that contain target port connection information specifying target destination ports to which the ports of the audio device and the external device that constitute the audio system should be connected; a selection part that selects one of the connection setting templates; a display part that displays a list of the plurality of connection setting templates for selection, wherein each connection setting template contains communication lines connecting the audio device and the external device, and each communication line being indicated in such a manner so as to represent the type thereof, the display also displaying a connection diagram showing a connection topology of the audio device and the external device of the audio system constituted based on the connection setting template selected by the selection part, the connection diagram including images of the audio device and the external device in a form indicating a type of communication line adaptable to each of the audio device and the external device and identification information identifying the audio device and the external device, the connection diagram further including connection paths that connect the ports of the audio device and the external device to the target destination ports for transmission of audio data, each connection path accompanying identification information indicating one or more devices used to process the audio data transmitted via the respective connection path; a check part that compares the target port connection information contained in the connection setting template selected by the selection part with actual port connection information indicating actual destination ports to which respective ports of the audio device and the external device constituting the audio system are actually connected; and an output part that outputs a result of comparison between the target port connection information and the actual port connection information by the check part.