An easy way to test the hearing and provides a service according to the hearing loss compensation, and as a result the apparatus is provided. The method of the present invention includes the steps of detecting a first hearing frequency band on the basis of whether the response to the test frequency; A first step of detecting a second hearing frequency band on the basis of whether the first hearing loss frequencies in response thereto each after the output by increasing the volume; The method comprising: detecting a third frequency band hearing loss after 2 hearing loss frequency bands output by changing the respective frequency bands on the basis of whether a response thereof; Storing the eliminated frequency band and relieve hearing loss hearing requirements in the above step a hearing loss compensation information; And part on the basis of the hearing loss compensation information comprises the step of outputting the audio signal after the correction, the apparatus of the present invention generates a frequency for generating a frequency for the test; An audio output unit for outputting the test frequency for; The user interface unit for receiving a response from the user corresponding to the output of the test frequency for; A controller for determining a hearing loss, the frequency band and generating correction information for correcting the hearing frequency band; After adjusting the frequency generated by the frequency generator frequency correction to output to the audio output; And a correction information storage unit for storing / managing the hearing loss compensation information. Therefore, the present invention can be can be self-diagnosing hearing loss early on, easy listening during a call or an audio by using a smart phone to which the present invention is applied to solve the deafness.