This study investigated the methods of effectively removing noises in the acoustic data collected from the cold water zone of the East Sea, and converted that data into NASC values for comparison and analysis. First, the noises accompanying the acoustic data were divided into background noise, impulse noise, transient noise and attenuated signals according to the pattern characteristics. Then, the NASC values before and after noise removal were compared. As a result, the background noises were found to show the highest difference of 6,946 times in the NASC values before and after removal. The attenuated signals showed that the NASC values were higher after the removal.

서 론
재료 및 방법
    음향 조사 및 음향 시스템
    음향 데이터 분석 및 음향 잡음 제거
결과 및 고찰
    음향 잡음 제거 결과
결 론
사 사
References

• 박근창(전남대학교 수산과학과 학생) | Geunchang PARK (Student, Division of Fisheries Science, Chonnam National University, Yeosu 59626, Korea)
• 한인성(국립수산과학원 기후변화연구과 연구관) | Inseong HAN (Researcher, Ocean Climate & Ecology Division, National Institute of Fisheries Sciences, Busan 46083, Korea)
• 오우석(전남대학교 수산과학과) | Wooseok OH (Student, Division of Fisheries Science, Chonnam National University, Yeosu 59626, Korea)
• 오선영(전남대학교 수산과학과) | Sunyoung OH (Student, Division of Fisheries Science, Chonnam National University, Yeosu 59626, Korea)
• 이경훈(전남대학교 해양생산관리학과 교수) | Kyounghoon LEE (Professor, Department of Marine Production Management, Chonnam National University, Yeosu 59626, Korea) Corresponding author