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초록
The aim of this study was to clarify the characteristics of interior noise in Japanese, Korean, and Chinese subways. The octave-band noise levels, A-weighted equivalent continuous sound pressure level (LAeq) and parameters extracted from interaural cross-correlation/autocorrelation functions (ACF/IACFs) were analyzed to evaluate the noise inside running train cars quantitatively and qualitatively. The average LAeq was 72-83 dBA. The IACF/ACF parameters of the noise showed variations in their values, suggesting they are affected by the characteristics of the trains running, wheel-rail interaction, and cross-section of the tunnels.
키워드
Train noise in a car; Interaural cross-correlation function; Autocorrelation function; Pitch
- 제목
- Interior Noise Characteristics in Japanese, Korean and Chinese Subways
- 저자
- Soeta, Yoshiharu; Shimokura, Ryota; Jeon, Jin Yong; Lee, Pyoung Jik
- 발행일
- 2013-09
- 유형
- 정기학술지(Article(Perspective Article포함))
- 저널명
- International Journal of Railway
- 권
- 6
- 호
- 3
- 페이지
- 120 ~ 124