목적: Tinnitus is a common symptom experienced by more than 90% of the population at least once in their lifetime. Many people experience severe enough symptoms to complain about inconvenience in their daily lives. Sound therapy is one of the most commonly applied treatments for tinnitus. It is important that patients regularly listen to proper sound sources for the treatment. However, the sound generator is usually not portable, and sound sources are mostly white noises or monotonous sounds, making them obstacles for the steady application of the treatment. In order to solve these problems, we developed a user- friendly acoustic therapeutic sound source-based mobile application. 방법:We selected 30 volunteer tinnitus patients from Soonchunhyang Buchun Hospital and they were involved in the trial from March 2014 to June 2014. Patients with objective tinnitus, auditory hypersensitivity, and 40dB or more hearing loss were excluded from the subject group. The survey group was divided into two groups a group with 16 white noise (WN) users, and the other group with 15 filtered music (FM) users. The questionnaire included four questions which ask 'Tinnitus reduction', 'Ease of use', 'Satisfaction', and 'Recommend to others'. Responses were measured on a 5-point scale. 결과:For 'Tinnitus reduction', FM group expressed higher reduction result than the WN group. FM group also gave more positive responses in 'Ease of use', 'Satisfaction', 'Recommend to others' than the WN group. 결론:We have developed a smart phone-based therapeutic sound application that makes treatment for tinnitus possible anywhere, anytime. It also enables the use of ordinary music files for sound therapy by generating patient-specific sound sources. Users are more comfortable with this mobile device than conventional sound therapy devices. In the user survey, more positive results are obtained from filtered music group' compared to the 'white noise group'.