The present invention relates to an apparatus capable of recording audio information and a method for controlling the apparatus, the apparatus comprising: a display unit; an input unit for receiving an input of audio information; a detection unit for detecting at least one of a surrounding environment and a bio-signal; and a control unit for recording inputted audio information, extracting a keyword from the recorded audio information, generating image information on the basis of at least one of an analysis result of the recorded audio information and the detection result of the detection unit, and displaying tag information, in which the keyword and the image information area combined, so as to correspond to the recorded audio information.