AEROACOUSTIC NOISE REDUCTION OF AN AUTOMOBILE USING ACOUSTIC HOLOGRAPHY

음향 홀로그래피를 이용한 자동차 바람소리 성능개발

This paper introduces the process of reducing the automobile wind noise by using acoustic holography. First, a microphone array scans a side or plane under an automible step-by-step. Second, a pressure on a source plane is calculated. Third process is to analyze how much individual sources contribute to interior noise. Fourth process is to control important noise sources determined by the contribution analysis. This paper deals with the entire process, theoretical and experimental problems.