Management Server, Audio Testing Method, Audio Client System, and Audio Testing System

An audio testing method, implemented by a processor, comprising:

• preparing an audio client system, wherein
• the audio client system includes:
• a speaker;
• an input end configured to receive a supply of an audio signal;
• and
• a first signal path from the input end to the speaker,
• acquiring a first transfer function measured for a portion of or for all of the first signal path in the audio client system;
• generating a virtual second signal path for a portion of or for all of the first signal path in the audio client system;
• calculating a second transfer function for a portion of or for all of the generated virtual second signal path;
• and
• determining a condition of the audio client system on a basis of a result of a comparison between the first transfer function and the second transfer function.

An audio client system comprising:

• a speaker;
• an input end configured to receive a supply of an audio signal;
• a first signal path from the input end to the speaker;
• a memory;
• and
• at least one processor, which upon execution of instructions stored in the memory, is configured to:
• measure a first transfer function for a portion or for all of the first signal path;
• and
• transmit the measured first transfer function to a management server, wherein
• the first transfer function is used for determining, by the management sever, a condition of the audio client system.

An audio testing system comprising:

• an audio client system;
• and
• a management server configured to control the audio client system, wherein
• the audio client system includes:
• a speaker;
• an input end configured to receive a supply of an audio signal;
• a first signal path from the input end to the speaker;
• a first memory;
• and
• at least one first processor, which upon execution of instructions stored in the first memory, is configured to:
• measure a first transfer function for a portion of or for all of the first signal path;
• and
• transmit the first transfer function to the management server, wherein
• the management server includes:
• a second memory, and
• at least one second processor, which upon execution of instructions stored in the second memory, is configured to:
• acquire the first transfer function transmitted from the audio client system,
• generate a virtual second signal path for a portion of or all of the first signal path in the audio client system,
• calculate a second transfer function for a portion of or all of the generated virtual second signal path;
• and
• determine a condition of the audio client system, based on a result of a comparison between the first transfer function and the second transfer function.