Audio device for outputting sound having uniform sound quality

An audio device, comprising:

• a housing including a first surface, a second surface opposite to the first surface, and a side surface surrounding a space between the first surface and the second surface;
• a vibration element disposed on the first surface;
• a microphone configured to obtain a sound generated as the vibration element makes an external object vibrate;
• a PCB disposed in the housing;
• a processor disposed on the PCB;
• a communication circuit configured to be electrically connected with the processor and receive a first audio signal from an external electronic device;
• and
• an operation mode selection device configured to obtain a user input, wherein the processor is configured to:
• generate a second audio signal, such that the vibration element makes the external object vibrate, when the user input corresponds to an analysis mode for correcting the first audio signal;
• allow the microphone to obtain a third audio signal generated as the external object vibrates;
• correct the first audio signal based on a deviation between the second audio signal and the third audio signal;
• and
• allow the vibration element to make the external object vibrate based on the corrected first audio signal.

A method for playing an audio signal, the method comprising:

• receiving a first audio signal;
• generating a second audio signal and controlling such that a vibration element makes an external object vibrate, when the vibration element is attached to the external object;
• obtaining a third audio signal generated as the external object vibrates;
• correcting the first audio signal based on a deviation between the second audio signal and the third audio signal;
• and
• controlling such that the vibration element makes the external object vibrate based on the corrected first audio signal.